Make mautrix bridges not overwrite their config

If they do, our next playbook runs would simply revert it
and report "changed" for that task.

There's no benefit to letting the bridge spew a new config file.

This does not apply to the mautrix whatsapp bridge, because that one
is written in Go (not Python) and takes different flags. There's no
equivalent flag there.

roles/matrix-bridge-mautrix-facebook/templates/systemd/matrix-mautrix-facebook.service.j2

@@ -44,7 +44,7 @@ ExecStart={{ matrix_host_command_docker }} run --rm --name matrix-mautrix-facebo
 			{{ arg }} \
 			{% endfor %}
 			{{ matrix_mautrix_facebook_docker_image }} \
-			python3 -m mautrix_facebook -c /config/config.yaml
+			python3 -m mautrix_facebook -c /config/config.yaml --no-update
 
 ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} kill matrix-mautrix-facebook 2>/dev/null'
 ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-mautrix-facebook 2>/dev/null'

roles/matrix-bridge-mautrix-hangouts/templates/systemd/matrix-mautrix-hangouts.service.j2

@@ -42,7 +42,7 @@ ExecStart={{ matrix_host_command_docker }} run --rm --name matrix-mautrix-hangou
 			{{ arg }} \
 			{% endfor %}
 			{{ matrix_mautrix_hangouts_docker_image }} \
-			python3 -m mautrix_hangouts -c /config/config.yaml
+			python3 -m mautrix_hangouts -c /config/config.yaml --no-update
 
 ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} kill matrix-mautrix-hangouts 2>/dev/null'
 ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-mautrix-hangouts 2>/dev/null'

roles/matrix-bridge-mautrix-signal/templates/systemd/matrix-mautrix-signal.service.j2

@@ -35,7 +35,7 @@ ExecStart={{ matrix_host_command_docker }} run --rm --name matrix-mautrix-signal
 			{{ arg }} \
 			{% endfor %}
 			{{ matrix_mautrix_signal_docker_image }} \
-			python3 -m mautrix_signal -c /config/config.yaml
+			python3 -m mautrix_signal -c /config/config.yaml --no-update
 
 ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} kill matrix-mautrix-signal 2>/dev/null'
 ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-mautrix-signal 2>/dev/null'

roles/matrix-bridge-mautrix-telegram/templates/systemd/matrix-mautrix-telegram.service.j2

@@ -42,7 +42,7 @@ ExecStart={{ matrix_host_command_docker }} run --rm --name matrix-mautrix-telegr
 			{{ arg }} \
 			{% endfor %}
 			{{ matrix_mautrix_telegram_docker_image }} \
-			python3 -m mautrix_telegram -c /config/config.yaml
+			python3 -m mautrix_telegram -c /config/config.yaml --no-update
 
 ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} kill matrix-mautrix-telegram 2>/dev/null'
 ExecStop=-{{ matrix_host_command_sh }} -c '{{ matrix_host_command_docker }} rm matrix-mautrix-telegram 2>/dev/null'