ci: migrate custom dependabot automation to Kodiak ENABLE-6675 (#8)

Author: jackie-linz

.github/workflows/dependabot-automation.yml

@@ -0,0 +1,16 @@
+version = 1
+
+[approve]
+auto_approve_usernames = ["dependabot"]
+
+[merge]
+automerge_label = "automerge 🚀"
+
+[merge.message]
+include_coauthors = true
+include_pull_request_url = true
+
+[merge.automerge_dependencies]
+# auto merge all PRs opened by "dependabot" that are "minor" or "patch" version upgrades. "major" version upgrades will be ignored.
+versions = ["minor", "patch"]
+usernames = ["dependabot"]