Set matrix_bot_matrix_reminder_bot_docker_repo_version correctly if matrix_bot_matrix_reminder_bot_version is latest

roles/custom/matrix-bot-matrix-reminder-bot/defaults/main.yml

@@ -6,7 +6,7 @@ matrix_bot_matrix_reminder_bot_enabled: true
 
 matrix_bot_matrix_reminder_bot_container_image_self_build: false
 matrix_bot_matrix_reminder_bot_docker_repo: "https://github.com/anoadragon453/matrix-reminder-bot.git"
-matrix_bot_matrix_reminder_bot_docker_repo_version: "{{ matrix_bot_matrix_reminder_bot_version }}"
+matrix_bot_matrix_reminder_bot_docker_repo_version: "{{ 'master' if matrix_bot_matrix_reminder_bot_version == 'latest' else matrix_bot_matrix_reminder_bot_version }}"
 matrix_bot_matrix_reminder_bot_docker_src_files_path: "{{ matrix_base_data_path }}/matrix-reminder-bot/docker-src"
 
 # renovate: datasource=docker depName=ghcr.io/anoadragon453/matrix-reminder-bot