chore(skills): bump metadata.version for the Research doc migration

Raise the PATCH version of each skill whose references/sources.md,
references, or validator changed in the Research registry migration, as
ADR-0022 requires. factory-audit and skill-author changed behaviour and
docs; the rest changed provenance metadata only.

Refs: #121
ADR: 0022
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EGHFJextYtVQseaHPDDhxB

plugins/git/.apm/skills/git-history/SKILL.md

@@ -8,7 +8,7 @@ description: >
   `git-commits`. Not a Gitea server's history -> `gitea-branches`.
 
 metadata:
-  version: "1.0.2"
+  version: "1.0.3"
   category: git
   source_keys:
     - git-scm-bisect-docs