chore(deps): update actions/setup-node action to v6 (#253)

This PR contains the following updates:

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

---

### Release Notes

<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)

</details>

---

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Automerge - At any time (no schedule defined).

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

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rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

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

---

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.github/workflows/_init.yml

@@ -40,7 +40,7 @@ jobs:
 
       - name: Setup node
         if: steps.cache-node-modules.outputs.cache-hit != 'true'
-        uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5
+        uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6
         with:
           node-version: ${{ steps.node-version.outputs.NODE_VERSION }}
 

.github/workflows/_release.yml

@@ -26,7 +26,7 @@ jobs:
           key: ${{ inputs.NODE_CACHE_KEY }}
 
       - name: Setup node
-        uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5
+        uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6
         with:
           node-version: ${{ inputs.NODE_VERSION }}
 

.github/workflows/_test.yml

@@ -31,7 +31,7 @@ jobs:
           key: ${{ inputs.NODE_CACHE_KEY }}
 
       - name: Setup node
-        uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 # v5
+        uses: actions/setup-node@2028fbc5c25fe9cf00d9f06a71cc4710d4507903 # v6
         with:
           node-version: "${{ inputs.NODE_VERSION }}"