Bump version of go-github to v73.0.0

[gmlewis]

This release contains the following breaking API changes:

• feat!: Add repository query option to ListCustomPropertyValues #3598
  BREAKING CHANGE: ListCustomPropertyValues now takes ListCustomPropertyValuesOptions instead of ListOptions.

...and the following additional changes:

• Bump go-github from v71 to v72 in /scrape #3572
• Update OpenAPI #3574
• Improve DownloadContents and DownloadContentsWithMeta methods #3573
• build(deps): bump actions/setup-go from 5.4.0 to 5.5.0 in the actions group #3575
• build(deps): bump golang.org/x/net from 0.39.0 to 0.40.0 in /scrape #3576
• build(deps): bump github.com/alecthomas/kong from 1.10.0 to 1.11.0 in /tools #3578
• build(deps): bump codecov/codecov-action from 5.4.0 to 5.4.3 #3579
• feat: Add support for sub-issue #3580
• fix: Add missing relationship and pkg external info for SBOMs #3582
• chore: Use any instead of interface{} #3584
• chore: Migrate golangci-lint to v2 #3587
• chore: Add alexandear to REVIEWERS #3588
• docs: Update minimum Go version in README to 1.23 #3589
• fix: Use stable media type in Starring API #3590
• docs: Use pkgsite links #3591
• build(deps): bump golang.org/x/net from 0.40.0 to 0.41.0 in /scrape #3593
• build(deps): bump golang.org/x/sync from 0.14.0 to 0.15.0 in /tools #3594
• build(deps): bump github.com/cloudflare/circl from 1.3.7 to 1.6.1 in /example #3595

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.32%. Comparing base (1b8d6fb) to head (5ce085a).
Report is 1 commits behind head on master.

Additional details and impacted files

@@ Coverage Diff @@## master #3599 +/- ##
=======================================
Coverage 91.32% 91.32% =======================================
Files 184 184 Lines 16143 16143 =======================================
Hits 14742 14742 Misses 1227 1227 Partials 174 174 

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