Updated mediawiki/extensions
Project: mediawiki/extensions/BlueSpiceFoundation  3c54b5d851bade101a86c9e8422c2c909cda60b3

i18n: add PLURAL to "bs-installer-could-not-rename"

Spotted by Macofe
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Bs-installer-could-not-rename/es

Change-Id: I9993ce2a670dbbc21c4954bd9e498d1959d22e62