Updated mediawiki/extensions
Project: mediawiki/extensions/ContentTranslation  3671963e834e73a6bf3dac706784f0848fe1fc65

High MT Category: Minor adjustments based on comments

* Progress validation now depends on json_decode result
* Consolidated and improved if statement
* Added additional space before return statement

Change-Id: Ife130b5c99041684016898d5c98d08d858a214ed