Adjust the number of releases to retain

Author: ophub

.github/workflows/delete-older-releases-artifacts.yml

@@ -17,7 +17,7 @@ env:
   DELETE_ARTIFACTS: true
   KEEP_DAY: 1
   KEEP_MININUM_RUNS: 0
-  KEEP_MININUM_RELEASE: 2
+  KEEP_MININUM_RELEASE: 3
 
 jobs:
   build: