🔧 Set Dependabot schedule interval to "monthly"

Author: YuriiMotov

.github/dependabot.yml

@@ -4,7 +4,7 @@ updates:
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     cooldown:
       default-days: 7
     commit-message:
@@ -21,7 +21,7 @@ updates:
   - package-ecosystem: "uv"
     directory: "/"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     cooldown:
       default-days: 7
     commit-message:
@@ -35,7 +35,7 @@ updates:
   - package-ecosystem: "pre-commit"
     directory: "/"
     schedule:
-      interval: "weekly"
+      interval: "monthly"
     cooldown:
       default-days: 7
     commit-message: