Prettier: Upgrade to 2 (#30387)

* Updated package json but not updated source files

* Update eslint plugin

* updated files

public/app/plugins/datasource/postgres/response_parser.ts

@@ -78,7 +78,7 @@ export default class ResponseParser {
 
     const unique = Array.from(new Set(res));
 
-    return _.map(unique, value => {
+    return _.map(unique, (value) => {
       return { text: value };
     });
   }