bump(nimble): 958fca1c → fdd3d177 (#3510)

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

.claude-plugin/marketplace.json

@@ -2007,7 +2007,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/Nimbleway/agent-skills.git",
-        "sha": "958fca1cca704c247fe75929c572fbad6a302ba5"
+        "sha": "fdd3d17713f591b2643d90c35f44546f97458163"
       },
       "homepage": "https://docs.nimbleway.com/integrations/agent-skills/plugin-installation"
     },