tools: use ubuntu-slim runner in GHA

PR-URL: https://github.com/nodejs/node/pull/61759
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

.github/workflows/codeql.yml

@@ -10,7 +10,7 @@ permissions:
 jobs:
   analyze:
     name: Analyze
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     permissions:
       actions: read
       contents: read