Add dependabot.yml

.github/dependabot.yml

@@ -0,0 +1,30 @@
+version: 2
+updates:
+    - package-ecosystem: "github-actions"
+      schedule:
+          interval: "weekly"
+      commit-message:
+          prefix: "GHA"
+      labels:
+          - "GHA"
+          - "dependencies"
+      open-pull-requests-limit: 1
+      target-branch: "master"
+      groups:
+        gha-dependencies:
+            patterns:
+                - "workiva/gha-*"
+                - "actions/*"
+      directory: "/"
+      pull-request-branch-name:
+          separator: "/"
+    - package-ecosystem: "pub"
+      directory: "/"
+      schedule:
+        interval: "weekly"
+      open-pull-requests-limit: 2
+      labels:
+          - "dependencies"
+      ignore:
+        - dependency-name: "*"
+          update-types: ["version-update:semver-major"]