add dependabot to this project

Signed-off-by: Jiaxiao (mossaka) Zhou <[email protected]>

Author: Mossaka

.github/dependabot.yml

@@ -0,0 +1,20 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: weekly
+    open-pull-requests-limit: 10
+
+  - package-ecosystem: gomod
+    directory: "/"
+    schedule:
+      interval: weekly
+    open-pull-requests-limit: 10
+    groups:
+      all-dependencies:
+        patterns:
+          - "*"
+        update-types:
+          - "minor"
+          - "patch"