Bump github.com/netresearch/go-cron from 0.15.0 to 0.15.1

[dependabot]

Bumps github.com/netresearch/go-cron from 0.15.0 to 0.15.1.

Changelog

Sourced from github.com/netresearch/go-cron's changelog.

[0.15.1] - 2026-07-28

Documentation-only release. No library code changed; it exists so that pkg.go.dev, which renders the latest tagged version, picks up the corrected day-of-week documentation.

Documentation

• Day-of-week accepts 7 for Sunday (PR#390): The day-of-week field is now documented as 0-7 rather than 0-6, with an explicit note that Sunday can be written as either 0 or 7. The parser has always normalized 7 to 0 (parser.go), so this corrects the documentation, not the behavior. Updated in doc.go, README, docs/ARCHITECTURE.md, and docs/PROJECT_INDEX.md. Thanks to @​hxl9654 for the contribution!
• Concurrency model and invariants (PR#385): AGENTS.md now describes which goroutine owns mutable scheduling state, lists the channels that serialize external access, and records the three invariants contributors must preserve (channel-routed mutations, mutex held across channel ops, deep-copied Entry fields).
• Go Report Card badge removed (PR#391): The service is sunset.

Changed

• CI: sync with netresearch/.github go-lib templates (PR#384, PR#387, PR#388): Dependabot grouping, labeler and auto-merge-deps configuration realigned with the template; CodeQL gained the merge_group trigger.

Commits

• 9bf570c docs(changelog): cut v0.15.1 (#392)
• 6417d4f docs(changelog): cut v0.15.1
• 41d368a doc: enhance documents, explaining that Sunday can be represented by both 0 a...
• 2a867d5 Merge branch 'main' into main
• 944d6f9 doc: enhance documents, explaining that Sunday can be represented by both 0 a...
• cd20662 chore(docs): drop the sunset Go Report Card badge (#391)
• 2d94027 chore(docs): drop the sunset Go Report Card badge
• 2d84b01 chore: sync go-lib template drift (#388)
• a31ddda chore: sync go-lib template drift (labeler + auto-merge-deps)
• aaaf1d1 ci(codeql): add merge_group trigger to match template (#387)
• Additional commits viewable in compare view