Fix HTTP server helper reporting success before shutdown finished - #3

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v3, actions/setup-go@v3, golangci/golangci-lint-action@v7. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Unexpected input(s) 'skip-pkg-cache', valid inputs are ['version', 'install-mode', 'working-directory', 'github-token', 'verify', 'only-new-issues', 'skip-cache', 'skip-save-cache', 'problem-matchers', 'args', 'cache-invalidation-interval']