RFR: jira: skip security check for labels

[Robin Westberg]

Labels themselves do not have a security level, so don't have to check that when setting them.

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

Commit messages:
 - Skip security check for labels

Changes: https://git.openjdk.java.net/skara/pull/928/files
 Webrev: https://webrevs.openjdk.java.net/?repo=skara&pr=928&range=00
  Stats: 4 lines in 1 file changed: 0 ins; 4 del; 0 mod
  Patch: https://git.openjdk.java.net/skara/pull/928.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/928/head:pull/928

PR: https://git.openjdk.java.net/skara/pull/928