Add explict build instructions for codeQL

Author: RafaelCenzano

.github/workflows/codeql.yml

@@ -46,8 +46,19 @@ jobs:
     - name: Install Taskfile support
       uses: arduino/setup-task@v2
 
-    - shell: bash
-      run: task build
+    - name: Build
+      shell: bash
+      env:
+        # Prevent Go toolchain re-exec which breaks CodeQL tracing.
+        # When GOTOOLCHAIN is not "local", Go may re-exec to a different
+        # toolchain version, bypassing CodeQL's instrumented go binary.
+        GOTOOLCHAIN: local
+      run: |
+        echo "CODEQL go: $CODEQL_ACTION_GO_BINARY"
+        echo "which go (before task): $(which go)"
+        go version
+        go env GOTOOLCHAIN GOROOT GOPATH
+        task build
 
     - name: Perform CodeQL Analysis
       uses: github/codeql-action/analyze@v4