chore(deps): update agent skills (#5300)

Co-authored-by: github-merge-queue <118344674+github-merge-queue@users.noreply.github.com>

Author: ksail-bot[bot]

.agents/skills/test-driven-development/SKILL.md

@@ -2,9 +2,9 @@
 description: Use when implementing any feature or bugfix, before writing implementation code
 metadata:
     github-path: skills/test-driven-development
-    github-ref: refs/tags/v5.0.7
+    github-ref: refs/tags/v6.0.2
     github-repo: https://github.com/obra/superpowers
-    github-tree-sha: 98904a7d8e0e04b9bd46220b9b17298f45fe0b72
+    github-tree-sha: 61939b456845d75979423c855829d05cbf2c304d
 name: test-driven-development
 ---
 # Test-Driven Development (TDD)
@@ -360,7 +360,7 @@ Never fix bugs without a test.
 
 ## Testing Anti-Patterns
 
-When adding mocks or test utilities, read @testing-anti-patterns.md to avoid common pitfalls:
+When adding mocks or test utilities, read [testing-anti-patterns.md](testing-anti-patterns.md) to avoid common pitfalls:
 - Testing mock behavior instead of real behavior
 - Adding test-only methods to production classes
 - Mocking without understanding dependencies