fix(deps): update dependency tinymce to v7 [security]

Author: renovate[bot]

package-lock.json

@@ -99,7 +99,7 @@
     "redux-logger": "^3.0.6",
     "redux-thunk": "^2.4.1",
     "reselect": "^4.1.5",
-    "tinymce": "^5.10.4",
+    "tinymce": "^7.0.0",
     "universal-cookie": "^8.0.0",
     "uuid": "^11.1.0",
     "xmlchecker": "^0.1.0",