release: v3.7.1-rc.1 (#8351)

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## Purpose
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## Pre-Merge TODO
- [ ] Write tests for your proposed changes
- [ ] Make sure that existing tests do not fail

Author: PavelMor25

.publishrc

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

package-lock.json

@@ -2,7 +2,7 @@
   "name": "testcafe",
   "description": "Automated browser testing for the modern web development stack.",
   "license": "MIT",
-  "version": "3.7.0",
+  "version": "3.7.1-rc.1",
   "author": {
     "name": "Developer Express Inc.",
     "url": "https://www.devexpress.com/"