MQE-955: Commit proper version in MFTF composer.json/create the new release tag

- increment version tag to 2.2.0

Author: imeron2433

composer.json

@@ -2,7 +2,7 @@
     "name": "magento/magento2-functional-testing-framework",
     "description": "Magento2 Functional Testing Framework",
     "type": "library",
-    "version": "2.1.2",
+    "version": "2.2.0",
     "license": "AGPL-3.0",
     "keywords": ["magento", "automation", "functional", "testing"],
     "config": {