chore(gha): update github-actions (major) (#1594)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/cache](https://redirect.github.com/actions/cache) | action |
major | `v4` → `v5` |
| [actions/checkout](https://redirect.github.com/actions/checkout) |
action | major | `v5` → `v6` |

---

### Release Notes

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

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

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

</details>

<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)

</details>

---

### Configuration

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

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR is behind base branch, 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/contentful/contentful-import).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4zNi4yIiwidXBkYXRlZEluVmVyIjoiNDMuMzYuMiIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOltdfQ==-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yaml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Setup Node.js
         uses: actions/setup-node@v6
@@ -30,7 +30,7 @@ jobs:
         run: ls -la dist/
 
       - name: Save Build folders
-        uses: actions/cache/save@v4
+        uses: actions/cache/save@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5
         with:
           path: |
             dist

.github/workflows/check.yaml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Setup Node.js
         uses: actions/setup-node@v6
@@ -24,7 +24,7 @@ jobs:
         run: npm ci
 
       - name: Restore the build folders
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5
         with:
           path: |
             dist

.github/workflows/codeql.yaml

@@ -19,7 +19,7 @@ jobs:
       security-events: write
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v4

.github/workflows/release.yaml

@@ -40,7 +40,7 @@ jobs:
           git config --global user.email '${{ steps.get-user-id.outputs.user-id }}+contentful-automation[bot]@users.noreply.github.com'
       
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
         with:
           fetch-depth: 0
 
@@ -57,7 +57,7 @@ jobs:
         run: npm ci
 
       - name: Restore the build folders
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5
         with:
           path: |
             dist

.github/workflows/test-integration.yaml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
 
       - name: Setup Node.js
         uses: actions/setup-node@v6
@@ -29,7 +29,7 @@ jobs:
         run: npm ci
 
       - name: Restore the build folders
-        uses: actions/cache/restore@v4
+        uses: actions/cache/restore@cdf6c1fa76f9f475f3d7449005a359c84ca0f306 # v5
         with:
           path: |
             dist