Add dependabot.yml

.github/dependabot.yml

@@ -0,0 +1,41 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  - package-ecosystem: "nuget" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "03:00"
+      timezone: "Asia/Seoul"
+    target-branch: "master"
+    commit-message:
+      prefix: "[.NET]"
+    groups:
+      microsoft-extensions:
+        dependency-type: "development"
+        applies-to: version-updates
+        patterns:
+        - "Microsoft.Extensions.*"
+        update-types:
+        - "minor"
+        - "patch"
+      normal-deps:
+        dependency-type: "development"
+        applies-to: version-updates
+        patterns:
+        - "*"
+        update-types:
+        - "major"
+        - "minor"
+        - "patch"
+        exclude-patterns:
+        - "Microsoft.Extensions.*"
+
+    ignore:
+    - dependency-name: "Microsoft.Extensions.*"
+      update-types: ["version-update:semver-major"]