Update actions/setup-node action to v6 (#1424)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/setup-node](https://redirect.github.com/actions/setup-node) |
action | major | `v5.0.0` -> `v6.0.0` |

---

### Release Notes

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

###
[`v6.0.0`](https://redirect.github.com/actions/setup-node/releases/tag/v6.0.0)

[Compare
Source](https://redirect.github.com/actions/setup-node/compare/v5.0.0...v6.0.0)

##### What's Changed

**Breaking Changes**

- Limit automatic caching to npm, update workflows and documentation by
[@&#8203;priyagupta108](https://redirect.github.com/priyagupta108) in
[#&#8203;1374](https://redirect.github.com/actions/setup-node/pull/1374)

**Dependency Upgrades**

- Upgrade ts-jest from 29.1.2 to 29.4.1 and document breaking changes in
v5 by [@&#8203;dependabot](https://redirect.github.com/dependabot)\[bot]
in
[#&#8203;1336](https://redirect.github.com/actions/setup-node/pull/1336)
- Upgrade prettier from 2.8.8 to 3.6.2 by
[@&#8203;dependabot](https://redirect.github.com/dependabot)\[bot] in
[#&#8203;1334](https://redirect.github.com/actions/setup-node/pull/1334)
- Upgrade actions/publish-action from 0.3.0 to 0.4.0 by
[@&#8203;dependabot](https://redirect.github.com/dependabot)\[bot] in
[#&#8203;1362](https://redirect.github.com/actions/setup-node/pull/1362)

**Full Changelog**:
<actions/setup-node@v5...v6.0.0>

</details>

---

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---

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---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/line/line-bot-sdk-nodejs).

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

Author: renovate[bot]

.github/workflows/deploy-doc.yml

@@ -17,7 +17,7 @@ jobs:
       issues: write
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
+      - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
         with:
           node-version: 24
 

.github/workflows/generate-code.yml

@@ -22,7 +22,7 @@ jobs:
           submodules: recursive
       - name: Update submodules
         run: git submodule update --remote --recursive
-      - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
+      - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
         id: setup_node_id
         with:
           node-version: 24

.github/workflows/npm-audit.yml

@@ -17,7 +17,7 @@ jobs:
     if: github.repository == 'line/line-bot-sdk-nodejs'
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
+      - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
         with:
           node-version: '24'
 

.github/workflows/release.yml

@@ -18,7 +18,7 @@ jobs:
     steps:
     - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     # Setup .npmrc file to publish to GitHub Packages
-    - uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
+    - uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
       with:
         node-version: 24
         registry-url: 'https://registry.npmjs.org'

.github/workflows/test.yml

@@ -34,7 +34,7 @@ jobs:
           java-version: 17
           architecture: x64
       - name: Setup Node.js
-        uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5.0.0
+        uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6.0.0
         with:
           node-version: ${{ matrix.node }}
           cache: 'npm'