Dependabot monthly

Author: mantzas

.github/dependabot.yml

@@ -9,9 +9,10 @@ updates:
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
-      interval: "daily"
+      interval: "monthly"
   # Maintain dependencies for Go
   - package-ecosystem: "gomod" # See documentation for possible values
     directory: "/" # Location of package manifests
     schedule:
-      interval: "daily"
+      interval: "monthly"
+