release: updated version (2.6.2-rc.1) and HH (#7744)

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

.publishrc

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

package.json

@@ -2,7 +2,7 @@
   "name": "testcafe",
   "description": "Automated browser testing for the modern web development stack.",
   "license": "MIT",
-  "version": "2.6.1",
+  "version": "2.6.2-rc.1",
   "author": {
     "name": "Developer Express Inc.",
     "url": "https://www.devexpress.com/"
@@ -143,7 +143,7 @@
     "source-map-support": "^0.5.16",
     "strip-bom": "^2.0.0",
     "testcafe-browser-tools": "2.0.25",
-    "testcafe-hammerhead": "^31.4.2",
+    "testcafe-hammerhead": "31.4.3",
     "testcafe-legacy-api": "5.1.6",
     "testcafe-reporter-json": "^2.1.0",
     "testcafe-reporter-list": "^2.2.0",