release: 3.7.0-rc.1 (#8301)

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.publishrc

@@ -8,7 +8,7 @@
  "gitTag": true
  },
  "confirm": false,
- "publishTag": "latest",
+ "publishTag": "rc",
  "prePublishScript": "gulp test-server",
  "postPublishScript": "gulp docker-publish"
 }