chore: add dependabot cooldown settings (#302)

Co-authored-by: pyansys-ci-bot <92810346+pyansys-ci-bot@users.noreply.github.com>
Co-authored-by: Frank Li <39963019+franknli@users.noreply.github.com>

Author: 3 people

.github/dependabot.yml

@@ -1,6 +1,8 @@
 version: 2
 updates:
   - package-ecosystem: "pip"
+    cooldown:
+      default-days: 10 # Fallback cooldown if no specific rule applies
     directory: "/"
     schedule:
       interval: "daily"
@@ -13,6 +15,8 @@ updates:
       prefix: "chore"
 
   - package-ecosystem: "github-actions"
+    cooldown:
+      default-days: 10 # Fallback cooldown if no specific rule applies
     directory: "/"
     schedule:
       interval: "daily"
@@ -21,4 +25,4 @@ updates:
     assignees:
       - "pyansys-ci-bot"
     commit-message:
-      prefix: "chore"
+      prefix: "chore"

doc/changelog.d/302.miscellaneous.md

@@ -0,0 +1 @@
+Chore: add dependabot cooldown settings