Pin eslint-config-google version

The newest version of eslint-config-google introduced an eslint-rule
that was not conformant with the style used in Gerrit.

This change pins the version of eslint-config-google to the working
version 0.12.0, which is known to be working after change 213232 in the
Gerrit project.

Change-Id: Ia15ac6ac8f32ee0859496d7bc77a869184c83cb9
1 file changed
tree: 3f7e5afdfd394fef9edd8b5076fe5c6eead69eb7
  1. jenkins/
  2. jenkins-docker/
  3. worker/
  4. .gitignore