cli/cli v2.60.0 on GitHub

What's Changed

Add ArchivedAt field by @tsukasaI in #9790
Include startedAt, completedAt in run steps data by @andyfeller in #9774
Adjust environment help for host and tokens by @williammartin in #9809
Add handling of empty titles for Issues and PRs by @jtmcg in #9701
LiveSigstoreVerifier.Verify should error if no attestations are present by @phillmv in #9742
gh at verify retries fetching attestations if it receives a 5xx by @phillmv in #9797
Prevent local extension installations with invalid names and conflicts with core commands and other extensions by @BagToad in #9794
Rewrite a sentence in CONTRIBUTING.md by @muzimuzhi in #9772
Use new GitHub preview terms in working-with-us.md by @BagToad in #9800
Use new GitHub previews terminology in attestation commands' help docs by @BagToad in #9799
Clarify in README that gh is supported on GitHub Enterprise Cloud by @BagToad in #9805
build(deps): bump github.com/gabriel-vasile/mimetype from 1.4.5 to 1.4.6 by @dependabot in #9752

Add acceptance tests for workflow, run, and cache commands by @BagToad in #9766
Add basic api acceptance tests by @BagToad in #9770
Add acceptance tests for release commands by @BagToad in #9771
Add acceptance tests for org and ssh-key commands by @BagToad in #9812
Add acceptance tests for gh auth commands by @jtmcg in #9787
Add acceptance tests for repo commands by @jtmcg in #9783
Add acceptance tests for search command by @BagToad in #9786
Add acceptance tests for variable commands by @andyfeller in #978
Add testscripts for gpg-key and label commands by @williammartin in #9811
Use forked testscript for token redaction by @williammartin in #9804
Add acceptance tests for secret commands by @andyfeller in #9782
Note token redaction in Acceptance test README by @williammartin in #9813

Full Changelog: v2.59.0...v2.60.0