Update golangci-lint.yml

Pinning action to a full length commit SHA [see](https://docs.github.com/en/actions/security-for-github-actions/security-guides/security-hardening-for-github-actions#using-third-party-actions)

Author: ismisepaul

.github/workflows/golangci-lint.yml

@@ -36,7 +36,7 @@ jobs:
       - name: golangci-lint
         env:
           GOOS: ${{ matrix.GOOS }}
-        uses: golangci/golangci-lint-action@v6
+        uses: golangci/golangci-lint-action@2226d7cb06a077cd73e56eedd38eecad18e5d837  # v6.5.0
         with:
           # Optional: version of golangci-lint to use in form of v1.2 or v1.2.3 or `latest` to use the latest version
           version: v1.64.5