Update golangci lint

Author: tsipinakis

.github/workflows/pipeline.yml

@@ -19,7 +19,7 @@ jobs:
         with:
           go-version: 1.21
       - name: Run golangci-lint
-        uses: golangci/golangci-lint-action@v4
+        uses: golangci/golangci-lint-action@v6
   test:
     name: go test
     if: ${{ github.event_name != 'schedule' }}