Switch to publishing image on Gitea

Re coop-cloud/organising#369

.drone.yml

@@ -1,6 +1,6 @@
 ---
 kind: pipeline
-name: deploy to hub.docker.com
+name: build & publish image
 steps:
   - name: run shellcheck
     image: debian:buster
@@ -11,12 +11,12 @@ steps:
   - name: docker push
     image: plugins/docker
     settings:
-      username:
-        from_secret: docker_reg_username_3wc
+      username: 3wordchant
       password:
-        from_secret: docker_reg_passwd_3wc
-      repo: 3wordchant/docker-cp-deploy
+        from_secret: git_coopcloud_tech_token_3wc
+      repo: git.coopcloud.tech/coop-cloud/docker-cp-deploy
       tags: latest
+      registry: git.coopcloud.tech
 trigger:
   branch:
     - main