Update relock-conda action version to v28

Author: beckermr

.github/workflows/relock.yml

@@ -35,7 +35,7 @@ jobs:
         run: |
           python autotick-bot/stop_me_if_needed.py
 
-      - uses: conda-incubator/relock-conda@d76b9e9170e5c1afe31e5d54ac8a719ed26ac239 # v27
+      - uses: conda-incubator/relock-conda@a2bc3539342497f43c9f13d322b24d8f17276f6e # v28
         if: ${{ ! env.CI_SKIP }}
         with:
           github-token: ${{ secrets.AUTOTICK_BOT_TOKEN }}