RFR: Add missing bridgekeeper dependency

[Robin Westberg]

Hi all,

Please review this final change regarding proper bridgekeeper bot dependencies.

Best regards,
Robin

----------------

Commits:
 - b199a7ba: Add missing dependency

Changes: https://git.openjdk.java.net/skara/pull/252/files
 Webrev: https://webrevs.openjdk.java.net/skara/252/webrev.00
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/skara/pull/252.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/252/head:pull/252

PR: https://git.openjdk.java.net/skara/pull/252