Updated mediawiki/extensions
Project: mediawiki/extensions/HSTS  064440625bd7b55de9a776ea5fe248fdf0eb7b3c

Fix grammar

Spotted by Lokal Profil and reported at
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Hsts-beta-feature-description/sv

Change-Id: I17166ab2a437f14afbf49fc0d9fb92626e6c1a16