GitHub CLI 2.68.0

@iamazeem

What's Changed

[gh repo view] Improve error message for forked repo by @iamazeem in #10334
Add signer-digest, source-ref, and source-digest options for gh attestation verify by @malancas in #10308
[gh pr checkout] Add --no-tags option to git fetch commands in checkout by @latzskim in #10479
[gh issue/pr comment] Add --create-if-none and prompts to create a comment if no comment already exists by @latzskim in #10427
[gh cache delete --all] Add --succeed-on-no-caches flag to return exit code 0 by @iamazeem in #10327
[gh release create] Fail when there are no new commits since the last release by @iamazeem in #10398
update default upstream when forking repo during PR creation by @daviddl9 in #10458

Refactor GetLocalAttestations and clean up custom registry transport by @malancas in #10382
Check GH_REPO too in addition to --repo for disambiguation by @williammartin in #10539
- (Fixes gh secret subcommands not working outside of a repository)
Fix unhandled panic in FindWorkflow and add tests by @jtmcg in #10521
Fix checkout when URL arg is from fork and cwd is upstream by @williammartin in #10512
[gh api] Escape package name (URL encoding) for packages endpoint by @iamazeem in #10384
Fix remoteResolver caching issue by @iamazeem in #10456
Fix gh project item-edit to allow --number 0 as a valid value by @aryanbhosale in #10417
Add mutex to fix race in attestation test client by @codysoyland in #10439
Base64 decode GPG passphrase in deployment workflow by @BagToad in #10546

Deep Dive Document Release Process by @williammartin in #10503
Inconsistent format of examples in help text by @iamazeem in #10508
Inconsistent format of description of flags (starting with lowercase letter) by @iamazeem in #10507
Update Go version to 1.23 in CONTRIBUTING.md by @williammartin in #10504
Fix minor auth login help typo by @williammartin in #10501
docs: document how to revoke gh OAuth tokens in auth logout's help by @BagToad in #10490
chore: update codespaces Go version by @BagToad in #10491
Allow injection of TUFMetadataDir in tests by @williammartin in #10478
refactor: use a more straightforward return value by @beforetech in #10489
Use subtests in attestation verification integration tests by @williammartin in #10463
Fix typo in README by @iamazeem in #10445
Update usage to lower-kebab-case by @iamazeem in #10447
Standardize URLs by @iamazeem in #10429
Remove trailing whitespace by @iamazeem in #10430

Bump actions/attest-build-provenance from 2.2.0 to 2.2.2 by @dependabot in #10518
Bump github.com/go-jose/go-jose/v4 from 4.0.2 to 4.0.5 by @dependabot in #10499
Bump github.com/spf13/pflag from 1.0.5 to 1.0.6 by @dependabot in #10338