Update git submodules

* Update Wikibase from branch 'master'
  to e7ada5fde5f187fef50badd632676363f322691f
  - Merge "bridge: Upgrade dependencies"
  - bridge: Upgrade dependencies
    
    This should fix all medium-and-above severity security issues reported
    by npm audit. The only remaining issue that cannot be fixed by running
    `npm upgrade` or `npm audit fix` will be fixed in a follow-up commit.
    
    The rule to enforce a single root in vue templates seems to be a bit
    overzealous. This has already been reported upstream in
    vuejs/eslint-plugin-vue#971 and was also discussed in
    vuejs/eslint-plugin-vue#884 and vuejs/eslint-plugin-vue#986 without
    obvious solution that would be applicable here. Solved by adding a not
    strictly necessary wrapping span.
    
    Change-Id: I3153c0f45ce53704ef2c02d7e2e2e4f6d67e3fc7

Author: jenkins-bot