bump(nimble): fdd3d177 → 74ca4dd4 (#4391)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.claude-plugin/marketplace.json

@@ -2334,7 +2334,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/Nimbleway/agent-skills.git",
-        "sha": "fdd3d17713f591b2643d90c35f44546f97458163"
+        "sha": "74ca4dd4bad18a899b1fbf364b70e5a9ceace80d"
       },
       "homepage": "https://docs.nimbleway.com/integrations/agent-skills/plugin-installation"
     },