More ansible-lint fixes

roles/matrix-synapse/tasks/rust-synapse-compress-state/compress_room.yml

@@ -21,6 +21,7 @@
   async: "{{ matrix_synapse_rust_synapse_compress_state_compress_room_time }}"
   poll: 10
   register: matrix_synapse_rust_synapse_compress_state_compress_room_command_result
+  changed_when: matrix_synapse_rust_synapse_compress_state_compress_room_command_result.rc == 0
 
 - ansible.builtin.debug: var="matrix_synapse_rust_synapse_compress_state_compress_room_command_result"
 
@@ -43,6 +44,7 @@
   async: "{{ matrix_synapse_rust_synapse_compress_state_psql_import_time }}"
   poll: 10
   register: matrix_synapse_rust_synapse_compress_state_psql_import_command_result
+  changed_when: matrix_synapse_rust_synapse_compress_state_psql_import_command_result.rc == 0
 
 - name: Clean up
   ansible.builtin.file:

roles/matrix-synapse/tasks/rust-synapse-compress-state/main.yml

@@ -70,6 +70,7 @@
   async: "{{ matrix_synapse_rust_synapse_compress_state_find_rooms_command_wait_time }}"
   poll: 10
   register: matrix_synapse_rust_synapse_compress_state_find_rooms_command_result
+  changed_when: false
 
 # We expect the output to be like this:
 #