v0.18.9

• (util.async_db) Changed aiosqlite connector to force-enable foreign keys, WAL mode and busy_timeout.
  • The values can be changed by manually specifying the same PRAGMAs in the init_commands db arg, e.g. - PRAGMA foreign_keys = OFF.
• (types) Added workaround to StateEvent.deserialize to handle Conduit's broken unsigned fields.
• (client.state_store) Fixed set_power_level to allow raw dicts the same way as set_encryption_info does (thanks to @bramenn in #127).