Update Dependabot config file

Author: dependabot-preview[bot]

.dependabot/config.yml

@@ -0,0 +1,14 @@
+version: 2
+updates:
+- package-ecosystem: gomod
+  directory: "/"
+  schedule:
+    interval: weekly
+    time: "10:00"
+    timezone: PST8PDT
+  pull-request-branch-name:
+    separator: "-"
+  open-pull-requests-limit: 10
+  labels:
+  - dependencies
+  - automerge