Set-up github-actions dependency updates by dependabot (#160)

Author: zefir-git

.github/dependabot.yml

@@ -1,8 +1,14 @@
 version: 2
 updates:
-  - package-ecosystem: "maven"
-    directory: "/"
+  - package-ecosystem: maven
+    directory: /
     schedule:
-      interval: "weekly"
-      day: "monday"
+      interval: weekly
+      day: monday
+      time: "06:00"
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly
+      day: monday
       time: "06:00"