Update GitHub Action Versions

[morisil]

GitHub Actions Version Updates

• anthropics/claude-code-action published a new release v1.0.78 on 2026-03-25T06:36:11Z
• gradle/actions published a new release v6.0.1 on 2026-03-24T16:07:52Z

[claude]

Code Review

This PR updates GitHub Action versions across three workflow files. The changes are straightforward and well-scoped.

Summary of Changes:

• anthropics/claude-code-action: v1.0.77 to v1.0.78 (in both claude-code.yml and claude-code-review.yml)
• gradle/actions/setup-gradle: v6.0.0 to v6.0.1 (in build-gradle.yml)

Code Quality OK - The updates are consistent and applied to all relevant workflow files. Both claude-code.yml and claude-code-review.yml reference the same action version, which is correct.

Correctness OK - Version bumps match the releases described in the PR body (published 2026-03-24 and 2026-03-25 respectively).

Security Note - The workflows pin to mutable version tags (e.g., @v1.0.78) rather than immutable commit SHAs. For supply chain security, best practice is to pin to a full commit SHA. This is a pre-existing pattern in the repo rather than something introduced by this PR, but worth noting if security hardening is ever a priority.

No functional issues found. This is a routine maintenance update generated by the action-version-updater workflow. Safe to merge.