update js flow dep to fix security issue (#3296)

Author: wing328

modules/openapi-generator/src/main/resources/Javascript-Flowtyped/package.mustache

@@ -32,7 +32,7 @@
     "@babel/plugin-transform-flow-strip-types": "^7.0.0",
     "@babel/preset-flow": "^7.0.0",
     "babel-preset-react-app": "^7.0.0",
-    "flow-copy-source": "^1.3.0",
+    "flow-copy-source": "^2.0.0",
     "rimraf": "^2.6.2"
   }
 }

samples/client/petstore/javascript-flowtyped/.openapi-generator/VERSION

@@ -1 +1 @@
-4.0.2-SNAPSHOT
+4.0.3-SNAPSHOT