cli/cli v2.50.0 on GitHub

What's Changed

Refactor git credential flow code by @williammartin in #9089
feat: add json output for gh pr checks by @nobe4 in #9079
Rework first auth tests with new gitcredential abstractions by @williammartin in #9095
list the various alias permutations for the command and subcommands, via '--help' and 'gh reference' by @gabemontero in #8824
Removed tty message when checking for extension upgrades by @leevic31 in #9088
Fix doc bug for gh run watch by @jasonodonnell in #9052
feat: add support for stateReason in gh pr view by @nobe4 in #9080
fix: rename the Attempts field to Attempt; expose in gh run view and gh run ls by @cawfeecake in #8905
Update regex in changedFilesNames to handle quoted paths by @anda3 in #9115
Add a gh variable get FOO command by @arnested in #9106
Add macOS pkg installer to deployment (#7554) by @paulober in #7555
Add integration tests for gh attestation verify shared workflow use case by @malancas in #9107
Add build provenance for gh CLI releases by @malancas in #9087
build(deps): bump github.com/gabriel-vasile/mimetype from 1.4.3 to 1.4.4 by @dependabot in #9124
Build completions during release on macos by @williammartin in #9136
Clarify Mac OS Installer packages are unsigned by @andyfeller in #9140

Full Changelog: v2.49.2...v2.50.0