Add chore prefix to Dependabot's commits.

wuychloe@amazon.com chloe1818 · wuychloe@amazon.com chloe1818 · commit 67a778305e3d · 2025-07-31T10:55:28.000-07:00
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
@@ -5,4 +5,6 @@ updates:
   schedule:
     interval: weekly
     day: tuesday
-  open-pull-requests-limit: 10
+  open-pull-requests-limit: 10
+  commit-message:
+    prefix: "chore:"
