Ensure password_hash salt is less than 16 chars

Also fixes the appservice and homeserver tokens for the Googlechat bridge,
so that they're not the same as the ones for the Hangouts bridge.

group_vars/matrix_servers

@@ -359,9 +359,9 @@ matrix_mautrix_googlechat_systemd_required_services_list: |
     (['matrix-nginx-proxy.service'] if matrix_nginx_proxy_enabled else [])
   }}
 
-matrix_mautrix_googlechat_appservice_token: "{{ matrix_synapse_macaroon_secret_key | password_hash('sha512', 'ho.as.token') | to_uuid }}"
+matrix_mautrix_googlechat_appservice_token: "{{ matrix_synapse_macaroon_secret_key | password_hash('sha512', 'gc.as.token') | to_uuid }}"
 
-matrix_mautrix_googlechat_homeserver_token: "{{ matrix_synapse_macaroon_secret_key | password_hash('sha512', 'ho.hs.token') | to_uuid }}"
+matrix_mautrix_googlechat_homeserver_token: "{{ matrix_synapse_macaroon_secret_key | password_hash('sha512', 'gc.hs.token') | to_uuid }}"
 
 matrix_mautrix_googlechat_container_http_host_bind_port: "{{ '' if matrix_nginx_proxy_enabled else '127.0.0.1:9007' }}"
 
@@ -369,7 +369,7 @@ matrix_mautrix_googlechat_login_shared_secret: "{{ matrix_synapse_ext_password_p
 
 # Postgres is the default, except if not using `matrix_postgres` (internal postgres)
 matrix_mautrix_googlechat_database_engine: "{{ 'postgres' if matrix_postgres_enabled else 'sqlite' }}"
-matrix_mautrix_googlechat_database_password: "{{ matrix_synapse_macaroon_secret_key | password_hash('sha512', 'mau.googlechat.db') | to_uuid }}"
+matrix_mautrix_googlechat_database_password: "{{ matrix_synapse_macaroon_secret_key | password_hash('sha512', 'mau.gc.db') | to_uuid }}"
 
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