Apply suggestions from code review

Co-authored-by: Ben Kochie <[email protected]>
Signed-off-by: Luca Comellini <[email protected]>

Author: lucacome

.github/dependabot.yml

@@ -1,10 +1,6 @@
 version: 2
 updates:
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: daily
   - package-ecosystem: "gomod"
     directory: "/"
     schedule:
-      interval: daily
+      interval: monthly