github: add cooldown for uv dependabot upgrades

Signed-off-by: Younes Khoudli <[email protected]>

Author: Khoyo

.github/dependabot.yml

@@ -106,6 +106,8 @@ updates:
     directory: "/python/"
     schedule:
       interval: "daily"
+    cooldown:
+      default-days: 5
     commit-message:
       prefix: "python:"
     open-pull-requests-limit: 0
@@ -116,6 +118,8 @@ updates:
     directory: "/tests/"
     schedule:
       interval: "daily"
+    cooldown:
+      default-days: 5
     commit-message:
       prefix: "tests:"
     open-pull-requests-limit: 0