Merge pull request #52 from cert-manager/add_dependabot

Add dependabot GH job

Author: jetstack-bot

.github/dependabot.yaml

@@ -0,0 +1,17 @@
+# Update Go dependencies and GitHub Actions dependencies weekly.
+version: 2
+updates:
+- package-ecosystem: gomod
+  directory: /
+  schedule:
+    interval: weekly
+  groups:
+    all:
+      patterns: ["*"]
+- package-ecosystem: github-actions
+  directory: /
+  schedule:
+    interval: weekly
+  groups:
+    all:
+      patterns: ["*"]