feat: add codeql-config file

.github/codeql-config.yml

@@ -0,0 +1,4 @@
+name: "code-server CodeQL config"
+
+paths-ignore:
+  - lib/vscode

.github/workflows/codeql-analysis.yml

@@ -23,9 +23,8 @@ jobs:
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v1
         with:
+          config-file: ./.github/codeql-config.yml
           languages: javascript
-          paths-ignore:
-            - lib/vscode
 
       - name: Autobuild
         uses: github/codeql-action/autobuild@v1