Hard code release job compare pattern.

Hard code release job compare pattern.

This change:
https://gerrit.acumos.org/r/c/ci-management/+/4979

The project section has:
gerrit_trigger_file_paths:
  - compare-type: REG_EXP
  pattern: '^((?!migrate-cms-to-cds|\/COMMIT_MSG).)*$'

This is overwriting the default parameters of this job.

gerrit_trigger_file_paths:
  - compare-type: REG_EXP
    pattern: "releases/*.yaml"

I belive I should hard code this value so that this
does not happen.

Pattern going forward will actually support
pattern: '(releases\/.*\.yaml|\.releases\/.*\.yaml)'

I will update 16470 and hard code as well, if this is
merged.

ISSUE: RELENG-2316
Signed-off-by: Aric Gardner <agardner@linuxfoundation.org>
Change-Id: Ib520672a548f34762c723972152abea898cd98a8