Fix capitalization: matrix → Matrix

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

roles/custom/matrix-bridge-mautrix-signal/tasks/setup_install.yml

@@ -82,7 +82,7 @@
     path: "{{ matrix_mautrix_signal_base_path }}/mautrix-signal.db"
   register: matrix_mautrix_signal_stat_database
 
-- name: Check if an old matrix state file exists
+- name: Check if an old Matrix state file exists
   ansible.builtin.stat:
     path: "{{ matrix_mautrix_signal_base_path }}/mx-state.json"
   register: matrix_mautrix_signal_stat_mx_state