🚚 roles: ble_keykeeper: Use namespaced name

Removed redundant word "role" from role name, which originates from git
repo name.  Makes it clear we use an external role here.

Link: https://docs.ansible.com/ansible/latest/galaxy/user_guide.html#installing-multiple-roles-from-a-file

host-platon.yml

@@ -6,7 +6,7 @@
     door_open_command: '/home/pi/sesame-open.sh'
     ble_keykeeper_dir: '/home/pi/netz39_ble_keykeeper'
   roles:
-    - role: ble-keykeeper-role
+    - role: maz3max.ble_keykeeper
       vars:
         ble_keykeeper_user: "{{ gatekeeper_user }}"
         ble_keykeeper_group: "{{ gatekeeper_user }}"

requirements.yml

@@ -11,7 +11,8 @@ roles:
   - name: penguineer.dehydrated_cron
     src: https://github.com/penguineer/ansible-role-dehydrated_cron.git
     version: v1.1.0
-  - src: git+https://github.com/maz3max/ble-keykeeper-role.git
+  - name: maz3max.ble_keykeeper
+    src: git+https://github.com/maz3max/ble-keykeeper-role.git
     version: v1.1.0
   - src: lespocky.telegraf_docker_in_docker
     version: v0.2.1