Update get-latest-agent-version.yaml

Author: kirkone

.github/workflows/get-latest-agent-version.yaml

@@ -1,7 +1,7 @@
 name: Get latest azure devops agent version
 on:
   schedule:
-    - cron:  '0 0 * * *'
+    - cron:  '*/5 * * * *'
 jobs:
   get-version:
     runs-on: ubuntu-latest