Upgrade GitHub Actions to latest versions (#92)

Summary:
Upgrade GitHub Actions to their latest versions for improved features, bug fixes, and security updates.

## Changes

| Action | Old Version(s) | New Version | Release | Files |
|--------|---------------|-------------|---------|-------|
| `docker/login-action` | [`74a5d14`](docker/login-action@74a5d14) | [`5e57cd1`](docker/login-action@5e57cd1) | [Release](https://github.com/docker/login-action/releases/tag/v3) | devcontainer.yml |
| `peaceiris/actions-gh-pages` | [`v3`](https://github.com/peaceiris/actions-gh-pages/releases/tag/v3) | [`v4`](https://github.com/peaceiris/actions-gh-pages/releases/tag/v4) | [Release](https://github.com/peaceiris/actions-gh-pages/releases/tag/v4) | publish-website.yml |

## Why upgrade?

Keeping GitHub Actions up to date ensures:
- **Security**: Latest security patches and fixes
- **Features**: Access to new functionality and improvements
- **Compatibility**: Better support for current GitHub features
- **Performance**: Optimizations and efficiency improvements

### Security Note

Actions that were previously pinned to commit SHAs remain pinned to SHAs (updated to the latest release SHA) to maintain the security benefits of immutable references.

### Testing

These changes only affect CI/CD workflow configurations and should not impact application functionality. The workflows should be tested by running them on a branch before merging.

Pull Request resolved: #92

Reviewed By: dtolnay

Differential Revision: D89277402

fbshipit-source-id: 36129506421e0bc5bc0d77c2d3a86efc05f52db6

Author: salmanmkc

.github/workflows/devcontainer.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Checkout Repo
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3
+        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef  # v3
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}

.github/workflows/publish-website.yml

@@ -42,7 +42,7 @@ jobs:
       - name: Build website
         run: yarn build
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         if: ${{ github.ref == 'refs/heads/main' }}
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}