Make `devture_playbook_runtime_messages_list` integration compatible with ansible-core>=2.19.0

Related to https://github.com/devture/com.devture.ansible.role.playbook_runtime_messages/issues/1

roles/custom/matrix-bridge-appservice-irc/tasks/migrate_nedb_to_postgres.yml

@@ -80,6 +80,6 @@
         devture_playbook_runtime_messages_list | default([])
         +
         [
-          "Note: Your appservice-irc database files have been imported into Postgres. The original database files have been moved from `{{ matrix_appservice_irc_data_path }}/*.db` to `{{ matrix_appservice_irc_data_path }}/*.db.backup`. When you've confirmed that the import went well and everything works, you should be able to safely delete these files."
+          "Note: Your appservice-irc database files have been imported into Postgres. The original database files have been moved from `" + matrix_appservice_irc_data_path + "/*.db` to `" + matrix_appservice_irc_data_path + "/*.db.backup`. When you've confirmed that the import went well and everything works, you should be able to safely delete these files."
         ]
       }}

roles/custom/matrix-bridge-appservice-slack/tasks/migrate_nedb_to_postgres.yml

@@ -75,6 +75,6 @@
         devture_playbook_runtime_messages_list | default([])
         +
         [
-          "Note: Your appservice-slack database files have been imported into Postgres. The original database files have been moved from `{{ matrix_appservice_slack_data_path }}/*.db` to `{{ matrix_appservice_slack_data_path }}/*.db.backup`. When you've confirmed that the import went well and everything works, you should be able to safely delete these files."
+          "Note: Your appservice-slack database files have been imported into Postgres. The original database files have been moved from `" + matrix_appservice_slack_data_path + "/*.db` to `" + matrix_appservice_slack_data_path + "/*.db.backup`. When you've confirmed that the import went well and everything works, you should be able to safely delete these files."
         ]
       }}