Add kea-operator Gitea repository

Provision the repo for the new Kea DHCP Kubernetes operator that replaces
the ISC dhcpd PXE-boot VM.

- add config/git.unkin.net/unkin/repository/kea-operator.yaml
Claude-Session: https://claude.ai/code/session_01JUoARVdmhxKQHyyyp1pxeT

config/git.unkin.net/unkin/repository/kea-operator.yaml

@@ -0,0 +1,14 @@
+description: "Kubernetes operator for managing Kea DHCP clusters, subnets, and PXE client classes"
+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/pre-commit"
+      - "ci/woodpecker/pr/test"
+      - "ci/woodpecker/pr/build"
+    approval_whitelist_teams:
+      - "Owners"