Update dependency coreos/chunkah to v0.7.0

[renovate]

This PR contains the following updates:

Package	Update	Change
coreos/chunkah	minor	v0.6.0 → v0.7.0

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Release Notes

coreos/chunkah (coreos/chunkah)

v0.7.0

Compare Source

v0.7.0

Minor changes

• Improved the accuracy of package stability scores: changelog entries within the same day are now counted as a single release, so packages with clustered entries (typically duplicates or short-term packaging issues) are no longer penalized. This fixes significant underestimates for some packages; for example, systemd's stability score rises from 0.260 to 0.416. (#​143)
• Fixed a reproducibility bug where images containing bigfiles or xattr components were non-reproducible unless SOURCE_DATE_EPOCH was set: the timestamps of ancestor directories in those layers are now clamped to the most recent file modification time. (#​161)
• Documented ALPM/pacman support in the README. (#​156)

Internal changes

• Removed the CLAUDE.md compatibility symlink, since Claude Code now supports AGENTS.md natively. (#​172)

Packaging changes

• Packit CI now tests on all active Fedora releases instead of a fixed list. (#​173)
• Bumped anyhow, which includes a fix for a Stacked Borrows UB violation in Error::downcast_mut. (#​150)
• Routine dependabot updates for the remaining Rust dependencies and GitHub Actions.

Full Changelog: coreos/chunkah@v0.6.0...v0.7.0

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