Update build to Ubuntu 22.04

Trying to see if this resolves the gcc error.

Author: code-asher

.github/workflows/build.yaml

@@ -187,7 +187,7 @@ jobs:
 
   build:
     name: Build code-server
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     timeout-minutes: 60
     env:
       CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}