add GitHub dependabot configuration to give hints regarding package u…

…pdates

.github/dependabot.yml

@@ -0,0 +1,17 @@
+# Basic set up
+
+version: 2
+updates:
+
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    # Workflow files stored in the default location of `.github/workflows`. (You don't need to specify `/.github/workflows` for `directory`. You can use `directory: "/"`.)
+    directory: "/"
+    schedule:
+      interval: "weekly"
+
+  # Maintain dependencies for nuget
+  - package-ecosystem: "nuget"
+    directory: "/"
+    schedule:
+      interval: "weekly"