Warn people if on an old SQLite-supporting mautrix-facebook version

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1401

https://github.com/mautrix/facebook/releases/tag/v0.3.2 says that this
version re-adds SQLite support.

CHANGELOG.md

@@ -253,6 +253,8 @@ The fact that we've renamed Synapse's database from `homeserver` to `synapse` (i
 
 ## (Breaking Change) The mautrix-facebook bridge now requires a Postgres database
 
+**Update from 2021-11-15**: SQLite support has been re-added to the mautrix-facebook bridge in [v0.3.2](https://github.com/mautrix/facebook/releases/tag/v0.3.2). You can ignore this changelog entry.
+
 A new version of the [mautrix-facebook](https://github.com/tulir/mautrix-facebook) bridge has been released. It's a full rewrite of its backend and the bridge now requires Postgres. New versions of the bridge can no longer run on SQLite.
 
 **TLDR**: if you're NOT using an [external Postgres server](docs/configuring-playbook-external-postgres.md) and have NOT forcefully kept the bridge on SQLite during [The big move to all-on-Postgres (potentially dangerous)](#the-big-move-to-all-on-postgres-potentially-dangerous), you will be automatically upgraded without manual intervention. All you need to do is send a `login` message to the Facebook bridge bot again.

roles/matrix-bridge-mautrix-facebook/tasks/validate_config.yml

@@ -10,22 +10,14 @@
     - "matrix_mautrix_facebook_homeserver_token"
 
 - block:
-    - name: Fail if on SQLite, unless on the last version supporting SQLite
+    - name: Inject warning if on an old SQLite-supporting version
-      fail:
-        msg: >-
-          You're trying to use the mautrix-facebook bridge with an SQLite database.
-          Going forward, this bridge only supports Postgres.
-          To learn more about this, see our changelog: https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/CHANGELOG.md#breaking-change-the-mautrix-facebook-bridge-now-requires-a-postgres-database
-      when: "not matrix_mautrix_facebook_docker_image.endswith(':da1b4ec596e334325a1589e70829dea46e73064b')"
-
-    - name: Inject warning if still on SQLite
       set_fact:
         matrix_playbook_runtime_results: |
           {{
             matrix_playbook_runtime_results|default([])
             +
             [
-              "NOTE: Your mautrix-facebook bridge setup is still on SQLite. Your bridge is not getting any updates and will likely stop working at some point. To learn more about this, see our changelog: https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/CHANGELOG.md#breaking-change-the-mautrix-facebook-bridge-now-requires-a-postgres-database"
+              "NOTE: Your mautrix-facebook bridge is still on SQLite and on the last version that supported it, before support was dropped. Support has been subsequently re-added in v0.3.2, so we advise you to upgrade (by removing your `matrix_mautrix_facebook_docker_image` definition from vars.yml)"
             ]
           }}
-  when: "matrix_mautrix_facebook_database_engine == 'sqlite'"
+  when: "matrix_mautrix_facebook_database_engine == 'sqlite' and matrix_mautrix_facebook_docker_image.endswith(':da1b4ec596e334325a1589e70829dea46e73064b')"