File is not `gofumpt`-ed (gofumpt)

issues found

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/setup-go@v4, actions/checkout@v3, golangci/golangci-lint-action@v3. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/