workflows: auto DR tests after a month

Since the artifacts will have been deleted, close out test.

Epic: none

Release note: none

Author: msbutler

.github/workflows/test-failure-stale.yml

@@ -30,6 +30,6 @@ jobs:
         days-before-pr-stale: 99999
         days-before-issue-stale: 30
         days-before-close: 5
-        any-of-labels: 'T-kv,T-sql-foundations'
+        any-of-labels: 'T-kv,T-sql-foundations,T-disaster-recovery'
         only-labels: 'C-test-failure'
         exempt-issue-labels: 'release-blocker,skipped-test,X-nostale'