Bump actions/upload-artifact from 3 to 4

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 3 to 4.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v3...v4)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/build-preview.yml

@@ -25,6 +25,6 @@ jobs:
           cp package.json package.json.real
           sed --regexp-extended '/"name"\s*:/ s#@[a-zA-Z\\-]+/##' package.json.real > package.json
       - run: npm run package
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: ./vscode-github-actions-1.0.${{ github.run_number }}.vsix

.github/workflows/publish.yml

@@ -88,7 +88,7 @@ jobs:
           
       - run: npm run package
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: vscode-github-actions-${{ env.EXT_VERSION }}.vsix
           path: ./vscode-github-actions-${{ env.EXT_VERSION }}.vsix