ci(ci-deps): ⬆️ update actions/cache action to v4 (#118)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/cache](https://togithub.com/actions/cache) | action | major | `v3` -> `v4` |

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### Release Notes

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

### [`v4`](https://togithub.com/actions/cache/compare/v3...v4)

[Compare Source](https://togithub.com/actions/cache/compare/v3...v4)

</details>

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### Configuration

📅 **Schedule**: Branch creation - "before 4am on Monday" in timezone Asia/Kolkata, Automerge - At any time (no schedule defined).

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

♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

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

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

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.github/actions/pnpm-install/action.yml

@@ -64,7 +64,7 @@ runs:
       run: |
         echo "YEAR_MONTH=$(/bin/date -u "+%Y%m")" >> $GITHUB_OUTPUT
 
-    - uses: actions/cache@v3
+    - uses: actions/cache@v4
       name: Setup pnpm cache
       with:
         path: ${{ steps.pnpm-config.outputs.STORE_PATH }}