chore(deps): update github actions (major) (#2850)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/checkout](https://redirect.github.com/actions/checkout) |
action | major | `v4` → `v6` |
|
[actions/download-artifact](https://redirect.github.com/actions/download-artifact)
| action | major | `v4` → `v8` |
| [actions/setup-node](https://redirect.github.com/actions/setup-node) |
action | major | `v4` → `v6` |
|
[actions/setup-python](https://redirect.github.com/actions/setup-python)
| action | major | `v5` → `v6` |
|
[actions/upload-artifact](https://redirect.github.com/actions/upload-artifact)
| action | major | `v4` → `v7` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the [Dependency
Dashboard](../issues/363) for more information.

---

### Release Notes

<details>
<summary>actions/checkout (actions/checkout)</summary>

### [`v6`](https://redirect.github.com/actions/checkout/compare/v5...v6)

[Compare
Source](https://redirect.github.com/actions/checkout/compare/v5...v6)

### [`v5`](https://redirect.github.com/actions/checkout/compare/v4...v5)

[Compare
Source](https://redirect.github.com/actions/checkout/compare/v4...v5)

</details>

<details>
<summary>actions/download-artifact (actions/download-artifact)</summary>

###
[`v8`](https://redirect.github.com/actions/download-artifact/compare/v7...v8)

[Compare
Source](https://redirect.github.com/actions/download-artifact/compare/v7...v8)

###
[`v7`](https://redirect.github.com/actions/download-artifact/compare/v6...v7)

[Compare
Source](https://redirect.github.com/actions/download-artifact/compare/v6...v7)

###
[`v6`](https://redirect.github.com/actions/download-artifact/compare/v5...v6)

[Compare
Source](https://redirect.github.com/actions/download-artifact/compare/v5...v6)

###
[`v5`](https://redirect.github.com/actions/download-artifact/compare/v4...v5)

[Compare
Source](https://redirect.github.com/actions/download-artifact/compare/v4...v5)

</details>

<details>
<summary>actions/setup-node (actions/setup-node)</summary>

###
[`v6`](https://redirect.github.com/actions/setup-node/compare/v5...v6)

[Compare
Source](https://redirect.github.com/actions/setup-node/compare/v5...v6)

###
[`v5`](https://redirect.github.com/actions/setup-node/compare/v4...v5)

[Compare
Source](https://redirect.github.com/actions/setup-node/compare/v4...v5)

</details>

<details>
<summary>actions/setup-python (actions/setup-python)</summary>

###
[`v6`](https://redirect.github.com/actions/setup-python/compare/v5...v6)

[Compare
Source](https://redirect.github.com/actions/setup-python/compare/v5...v6)

</details>

<details>
<summary>actions/upload-artifact (actions/upload-artifact)</summary>

###
[`v7`](https://redirect.github.com/actions/upload-artifact/compare/v6...v7)

[Compare
Source](https://redirect.github.com/actions/upload-artifact/compare/v6...v7)

###
[`v6`](https://redirect.github.com/actions/upload-artifact/compare/v5...v6)

[Compare
Source](https://redirect.github.com/actions/upload-artifact/compare/v5...v6)

###
[`v5`](https://redirect.github.com/actions/upload-artifact/compare/v4...v5)

[Compare
Source](https://redirect.github.com/actions/upload-artifact/compare/v4...v5)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

👻 **Immortal**: This PR will be recreated if closed unmerged. Get
[config
help](https://redirect.github.com/renovatebot/renovate/discussions) if
that's undesired.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/googleapis/genai-toolbox).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My42Ni40IiwidXBkYXRlZEluVmVyIjoiNDMuOTEuNSIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOltdfQ==-->

Co-authored-by: Yuan Teoh <45984206+Yuan325@users.noreply.github.com>

Author: renovate-bot

.github/workflows/cloudflare_sync.yaml

@@ -31,7 +31,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ github.event.workflow_run.conclusion == 'success' }}
     steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
         with:
           ref: 'cloudflare-pages'
       - name: Cleanup

.github/workflows/docs_lint.yaml

@@ -31,10 +31,10 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Set up Python
-        uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
         with:
           python-version: '3.x'
 

.github/workflows/docs_preview_build_cf.yaml

@@ -37,7 +37,7 @@ jobs:
       run:
         working-directory: .hugo
     steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
         with:
           ref: ${{ env.HEAD_SHA }}
           fetch-depth: 0
@@ -49,7 +49,7 @@ jobs:
           extended: true
 
       - name: Setup Node
-        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
+        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6
         with:
           node-version: "22"
           cache: 'npm'
@@ -72,7 +72,7 @@ jobs:
           echo ${{ env.PR_NUMBER }} > ../artifact-payload/pr_number.txt
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7
         with:
           name: cf-preview-data
           path: artifact-payload/

.github/workflows/docs_preview_deploy_cf.yaml

@@ -45,10 +45,10 @@ jobs:
       cancel-in-progress: true
     steps:
       - name: Checkout base repository
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Download Artifact
-        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
         with:
           name: cf-preview-data
           github-token: ${{ secrets.GITHUB_TOKEN }}