v1.4.3

• Support new Webhook events discussion and discussion_comment (#8).
• Read file concurrently with limiting concurrency to number of CPUs. This improves performance when checking many files and disabling shellcheck/pyflakes integration.
• Support Linux based on musl libc by the download script (#5).
• Reduce number of goroutines created while running shellcheck/pyflakes processes. This has small impact on memory usage when your workflows have many run: steps.
• Reduce built binary size by splitting an external library which is only used for debugging into a separate command line tool.
• Introduce several micro benchmark suites to track performance.
• Enable code scanning for Go/TypeScript/JavaScript sources in actionlint repository.