Update git submodules
- Update extensions/Interwiki from branch 'REL1_40' to 8fbefc8a7a3922d301f5dcb37272e6e0ba9155e6
- Localisation updates from https://translatewiki.net.
Change-Id: I7d9552a1944497fb88df731377caf6f2bf6354e5
- Localisation updates from https://translatewiki.net.