git: add dns-updater repository

RFC2136 dynamic-DNS updater daemon (Go) that replaces the puppet dns-update
shell script. Squash merge, protected main with woodpecker build/test/pre-commit
status checks.

config/git.unkin.net/unkin/repository/dns-updater.yaml

@@ -0,0 +1,14 @@
+description: "RFC2136 dynamic-DNS updater daemon: watches a records file and network interfaces and pushes TSIG-signed updates to BIND, with a local status API for facter."
+private: false
+default_branch: "main"
+default_delete_branch_after_merge: true
+default_merge_style: "squash"
+branch_protection:
+  - rule_name: "main"
+    enable_push: false
+    status_check_contexts:
+      - "ci/woodpecker/pr/build"
+      - "ci/woodpecker/pr/test"
+      - "ci/woodpecker/pr/pre-commit"
+    approval_whitelist_users:
+      - "benvin"