Migrate from gitea to forgejo

It's not just the colour scheme, honest!

Some things still need renaming, but at least the application has moved.

ansible/roles/forgejo_runner/tasks/main.yml

@@ -0,0 +1,34 @@
+- name: Create install directory
+  file:
+    path: /opt/forgejo-runner
+    state: directory
+    owner: "{{ docker_user.name }}"
+    mode: "{{ docker_compose_directory_mask }}"
+  become: true
+
+- name: Create data directory
+  file:
+    path: /opt/forgejo-runner/data
+    state: directory
+    mode: "700"
+    owner: "{{ docker_user.name }}"
+  become: true
+
+- name: Install config file
+  template:
+    src: files/config.yml
+    dest: /opt/forgejo-runner/data/config.yml
+    mode: "600"
+    owner: "{{ docker_user.name }}"
+  notify: restart forgejo-runner
+  become: true
+
+- name: Install compose file
+  template:
+    src: files/docker-compose.yml
+    dest: /opt/forgejo-runner/docker-compose.yml
+    mode: "{{ docker_compose_file_mask }}"
+    owner: "{{ docker_user.name }}"
+    validate: docker-compose -f %s config
+  notify: restart forgejo-runner
+  become: true