chore: update publish command to skip npm publish in CI

Author: adeze

.releaserc.json

@@ -7,7 +7,7 @@
       "@semantic-release/exec",
       {
         "prepareCmd": "jq \".version = \\\"${nextRelease.version}\\\"\" package.json > package.json.tmp && mv package.json.tmp package.json && jq \".version = \\\"${nextRelease.version}\\\"\" manifest.json > manifest.json.tmp && mv manifest.json.tmp manifest.json && jq \".version = \\\"${nextRelease.version}\\\"\" mcp.json > mcp.json.tmp && mv mcp.json.tmp mcp.json && jq \".version = \\\"${nextRelease.version}\\\"\" gemini-extension.json > gemini-extension.json.tmp && mv gemini-extension.json.tmp gemini-extension.json && bun run mcpb:pack",
-        "publishCmd": "npm publish --access public --registry https://registry.npmjs.org/"
+        "publishCmd": "echo 'Skipping npm publish in CI'"
       }
     ],
     [