Merge pull request #407 from containers/renovate/actions-setup-go-6.x

[skip-ci] Update actions/setup-go action to v6

Author: Luap99

.github/workflows/validate.yml

@@ -91,7 +91,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v5
-    - uses: actions/setup-go@v5
+    - uses: actions/setup-go@v6
       with:
         go-version: 1.25.x
         # See comment on lint task