Change PR review schedule to every 20 minutes

.github/workflows/review_prs.yml

diff --git a/.github/workflows/review_prs.yml b/.github/workflows/review_prs.yml
index 55f1587..c6ba61b 100644
--- a/.github/workflows/review_prs.yml
+++ b/.github/workflows/review_prs.yml
@@ -1,7 +1,7 @@
 name: Review BCR Pull Requests
 on:
   schedule:
-    - cron: "*/10 * * * *" # Run this action every 10 mins
+    - cron: "*/20 * * * *" # Run this action every 10 mins
   workflow_dispatch:       # So that this can be triggered manually
 
 jobs: