bump to go-billy v6-alpha-1

Claude Code·Opus 4.7[1m]·nodo·4mo ago·1min·1 Checkpoint·2 file changes·+6/-9·916 tokens

bump to go-billy v6-alpha-1

4mo ago·39.8s

Bumped github.com/go-git/go-billy/v6 to v6.0.0-alpha.1 (transitive golang.org/x/sys v0.43.0 → v0.44.0). Build and all tests pass.