Tag v1.63.0 (libvcs 0.43.0 floor)

why: Raise the libvcs floor to v0.43.0, which restores pytest 9.1
compatibility for libvcs's auto-loaded pytest plugin. The prior
libvcs aborted the test session at startup under pytest 9.1.

what:
- Bump version 1.62.0 -> 1.63.0
- Date CHANGES v1.63.0 release section, open a fresh v1.64.x
  unreleased block

Tag v1.62.0 (clone depth + options: sync keys)

why: Ship numeric clone depth (#552) and the relocation of per-repository
sync keys (rev/shallow/depth) under an options: block, with a vcspull
migrate command and a sync-time deprecation warning for the old
top-level form.

what:
- Bump version 1.61.0 -> 1.62.0
- Date CHANGES v1.62.0 release section, open a fresh v1.63.x unreleased
  block

Tag v1.61.0 (add/discover rev + shallow)

why: Ship per-repository revision pinning (#551) and shallow-clone
capture (#550) so add/discover can record a reproducible snapshot that
sync honors.

what:
- Bump version 1.60.1 -> 1.61.0
- Date CHANGES v1.61.0 release section, open a fresh unreleased block

Tag v1.60.1 (test fix)

Tag v1.60.0 (libvcs 0.41.0)

Tag v1.59.0

Tag v1.58.1 (fix symlink issue)

Tag v1.58.0 (vcspull import improvements)

Tag v1.57.0 (import gitlab improvements via #519)

Tag v1.56.1 (bug fix for imports)