Install Playwright browsers in CI for web tests

The web extension tests use @vscode/test-web which requires Playwright
to run browser-based tests. Add explicit Playwright chromium installation
step before running web tests.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: ntotten

.github/workflows/main.yaml

@@ -51,6 +51,7 @@ jobs:
           node-version-file: ".nvmrc"
       - uses: pnpm/action-setup@v4
       - run: pnpm install
+      - run: pnpm exec playwright install --with-deps chromium
       - run: pnpm test:web
   package:
     runs-on: ubuntu-latest
@@ -63,7 +64,7 @@ jobs:
           node-version-file: ".nvmrc"
       - uses: pnpm/action-setup@v4
       - run: pnpm install
-      - run: npx @vscode/vsce package
+      - run: npx @vscode/vsce package --no-dependencies
       - run: echo "VSIX_PATH=$(find . -maxdepth 1 -type f -iname "*.vsix" | head -1)" >> $GITHUB_ENV
       - run: echo "VSIX_NAME=$(basename $(find . -maxdepth 1 -type f -iname "*.vsix" | head -1))" >> $GITHUB_ENV
       - uses: actions/upload-artifact@v4
@@ -90,7 +91,7 @@ jobs:
             echo "is_prerelease=false" >> $GITHUB_OUTPUT
           fi
       - run: pnpm install
-      - run: npx @vscode/vsce package ${{ steps.check_prerelease.outputs.is_prerelease == 'true' && '--pre-release' || '' }}
+      - run: npx @vscode/vsce package --no-dependencies ${{ steps.check_prerelease.outputs.is_prerelease == 'true' && '--pre-release' || '' }}
       - run: echo "VSIX_PATH=$(find . -maxdepth 1 -type f -iname "*.vsix" | head -1)" >> $GITHUB_ENV
       - run: echo "VSIX_NAME=$(basename $(find . -maxdepth 1 -type f -iname "*.vsix" | head -1))" >> $GITHUB_ENV
       - name: Create GitHub Release
@@ -109,4 +110,4 @@ jobs:
 
           ---
           See the full [CHANGELOG](https://github.com/prettier/prettier-vscode/blob/main/CHANGELOG.md) for details."
-      - run: npx @vscode/vsce publish -p ${{ secrets.MARKETPLACE_TOKEN }} ${{ steps.check_prerelease.outputs.is_prerelease == 'true' && '--pre-release' || '' }}
+      - run: npx @vscode/vsce publish --no-dependencies -p ${{ secrets.MARKETPLACE_TOKEN }} ${{ steps.check_prerelease.outputs.is_prerelease == 'true' && '--pre-release' || '' }}

package.json

@@ -94,6 +94,7 @@
     ]
   },
   "devDependencies": {
+    "@playwright/test": "^1.57.0",
     "@types/fs-extra": "^11.0.4",
     "@types/glob": "^7.2.0",
     "@types/minimatch": "^5.1.2",