Bump golang linter version in CI

Author: Lorenz Kästle

.github/workflows/golangci-lint.yml

@@ -18,4 +18,4 @@ jobs:
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v8
         with:
-          version: v2.0.2
+          version: v2.1.6