Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  a5a1e46f60bf54e2f422f6881598c017bf19bde3

Corrected string and text description

The string type had language part, which is wrong.
The text used a "text" part which should be "value"

Change-Id: I5a5e6c164bd070d77c87e3a24fa7f243c36cf338