Revert "Bump Go version to 1.23.6 (#30242)" (#30359)

This reverts commit acbbd4c58d.

.github/workflows/codeql-analysis.yml

@@ -42,7 +42,7 @@ jobs:
     - name: Setup go
       uses: actions/setup-go@v5
       with:
-        go-version-file: server/go.mod
+        go-version: '1.22'
       if: ${{ matrix.language == 'go' }}