fix: use node v20 to fix broken release workflow

fixes:

```
Run npx ovsx publish --packagePath $(npx glob dist/**/*.vsix)
ovsx requires at least NodeJS version 20. Check your installed version with `node --version`.
```

and also warnings during npm ci:
```
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: '@vscode/[email protected]',
npm warn EBADENGINE   required: { node: '>= 20' },
npm warn EBADENGINE   current: { node: 'v18.20.4', npm: '10.7.0' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: '[email protected]',
npm warn EBADENGINE   required: { node: '20 || >=22' },
npm warn EBADENGINE   current: { node: 'v18.20.4', npm: '10.7.0' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: '[email protected]',
npm warn EBADENGINE   required: { node: '20 || >=22' },
npm warn EBADENGINE   current: { node: 'v18.20.4', npm: '10.7.0' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: '[email protected]',
npm warn EBADENGINE   required: { node: '20 || >=22' },
npm warn EBADENGINE   current: { node: 'v18.20.4', npm: '10.7.0' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: '[email protected]',
npm warn EBADENGINE   required: { node: '>= 20' },
npm warn EBADENGINE   current: { node: 'v18.20.4', npm: '10.7.0' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: '[email protected]',
npm warn EBADENGINE   required: { node: '20 || >=22' },
npm warn EBADENGINE   current: { node: 'v18.20.4', npm: '10.7.0' }
npm warn EBADENGINE }
npm warn EBADENGINE Unsupported engine {
npm warn EBADENGINE   package: '[email protected]',
npm warn EBADENGINE   required: { node: '20 || >=22' },
npm warn EBADENGINE   current: { node: 'v18.20.4', npm: '10.7.0' }
npm warn EBADENGINE }
```

.github/workflows/ci.yml

@@ -23,6 +23,9 @@ jobs:
     - run: cargo fmt --all -- --check
     - run: cargo clippy --all-targets
     - run: cargo build
+    - uses: actions/setup-node@v4
+      with:
+        node-version-file: package.json
     - run: npm ci
     - run: npm run lint
     # vscode requires an X Server

.github/workflows/release.yml

@@ -107,6 +107,9 @@ jobs:
       contents: write
     steps:
       - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: package.json
       # download each artifact into its own self-named directory
       - uses: actions/download-artifact@v4
         with:

package.json

@@ -22,6 +22,7 @@
     "Other"
   ],
   "engines": {
+    "node": "^20.18.0",
     "vscode": "^1.84.0"
   },
   "activationEvents": [