chore: Enter pre-release mode and version packages

packages/medusa-test-utils/package.json

@@ -1,6 +1,6 @@
 {
   "name": "medusa-test-utils",
-  "version": "1.1.39",
+  "version": "1.1.40-rc.0",
   "description": "Test utils for Medusa",
   "main": "dist/index.js",
   "repository": {
@@ -31,7 +31,7 @@
   },
   "dependencies": {
     "@babel/plugin-transform-classes": "^7.9.5",
-    "medusa-core-utils": "^1.1.31",
+    "medusa-core-utils": "^1.2.0-rc.0",
     "randomatic": "^3.1.1"
   },
   "gitHead": "81a7ff73d012fda722f6e9ef0bd9ba0232d37808"