chore(actions): update actions/setup-go action to v6

Author: renovate[bot]

.github/workflows/run-tests.yaml

@@ -28,7 +28,7 @@ jobs:
       uses: actions/checkout@v5
 
     - name: Setup go
-      uses: actions/setup-go@v5
+      uses: actions/setup-go@v6
       with:
         go-version-file: 'go.mod'