- see https://github.com/ruby/setup-ruby#caching-bundle-install-automatically

See https://github.com/castwide/solargraph/issues/380 and previous commit e063b6cb4c

- fixing vulnerability via https://docs.github.com/en/free-pro-team@latest/actions/reference/workflow-commands-for-github-actions#environment-files

- end of an era

- actions/setup-ruby does not work on new GHA runners Ubuntu 20.04 (missing bundler in 2.5) as per https://github.com/actions/setup-ruby/issues/70
- might be deprecated as per https://github.com/actions/setup-ruby/issues/80
- https://github.com/ruby/setup-ruby is recommended is superior

- this adds a new workflow for Github Actions that mirrors what the existing Travis CI workflow tests
- Travis CI might become unfriendly to opensource soonish so migration might be necessary

See https://github.com/castwide/solargraph/issues/380

- fixing vulnerability via https://docs.github.com/en/free-pro-team@latest/actions/reference/workflow-commands-for-github-actions#environment-files

- explicitly use webrick gem version with patch against CVE-2020-25613
- https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613/
- webrick versions bundled with ruby are vulnerable at this point

- amends 5b332d8f57

- uses newly released `--skip-dirs` flag of Trivy 0.11.0

Update jaeger-client to version 1.1.0 (#62)

Co-authored-by: depfu[bot] <23717796+depfu[bot]@users.noreply.github.com>