buscarron: migrate to native /metrics auth

roles/custom/matrix-bot-buscarron/tasks/setup_install.yml

@@ -40,21 +40,6 @@
     - {path: "{{ matrix_bot_buscarron_docker_src_files_path }}", when: true}
   when: "item.when | bool"
 
-- name: Determine basicauth filename
-  ansible.builtin.set_fact:
-    matrix_bot_buscarron_basicauth_file_tmp: "{{ matrix_bot_buscarron_basicauth_file }}_{{ inventory_hostname }}"
-  when: matrix_bot_buscarron_basicauth_enabled | bool
-
-- name: Generate basic auth file
-  community.general.htpasswd:
-    path: "{{ matrix_bot_buscarron_basicauth_file }}"
-    name: "{{ matrix_bot_buscarron_basicauth_user }}"
-    password: "{{ matrix_bot_buscarron_basicauth_password }}"
-    mode: 0640
-  become: false
-  delegate_to: 127.0.0.1
-  when: matrix_bot_buscarron_basicauth_enabled | bool
-
 - name: Ensure buscarron support files installed
   ansible.builtin.template:
     src: "{{ role_path }}/templates/{{ item }}.j2"
@@ -66,14 +51,6 @@
     - env
     - labels
 
-- name: Ensure temporary basic auth file is removed
-  ansible.builtin.file:
-    path: "{{ matrix_bot_buscarron_basicauth_file }}"
-    state: absent
-  become: false
-  delegate_to: 127.0.0.1
-  when: matrix_bot_buscarron_basicauth_enabled | bool
-
 - name: Ensure buscarron image is pulled
   community.docker.docker_image:
     name: "{{ matrix_bot_buscarron_docker_image }}"