Update mautrix requirement from >=0.21.0 to >=0.21.1

[dependabot]

Updates the requirements on mautrix to permit the latest version.

Release notes

Sourced from mautrix's releases.

v0.21.1

• (client) Added synchronous middlewares for sync event handling.
• (client) Added safety for handling corrupted invites sent by server.
• (crypto) Started dispatching unrecognized decrypted olm events to event listeners.
• (types) Changed join rule enums to allow custom values.
• (client) Fixed parsing /messages responses.

Changelog

Sourced from mautrix's changelog.

v0.21.1 (2026-07-05)

• (client) Added synchronous middlewares for sync event handling.
• (client) Added safety for handling corrupted invites sent by server.
• (crypto) Started dispatching unrecognized decrypted olm events to event listeners.
• (types) Changed join rule enums to allow custom values.
• (client) Fixed parsing /messages responses.

v0.21.0 (2025-11-17)

• (event) Added support for creator power in room v12+.
• (crypto) Added support for generating and using recovery keys for verifying the active device.
• (bridge) Added config option for self-signing bot device.
• (bridge) Removed check for login flows when using MSC4190 (thanks to @​meson800 in #178).
• (client) Changed set_displayname and set_avatar_url to avoid setting empty strings if the value is already unset (thanks to @​frebib in #171).

#171: mautrix/python#171 #178: mautrix/python#178

v0.20.8 (2025-06-01)

• (bridge) Added support for MSC4190 (thanks to @​surakin in #175).
• (appservice) Renamed push_ephemeral in generated registrations to receive_ephemeral to match the accepted version of [MSC2409].
• (bridge) Fixed compatibility with breaking change in aiohttp 3.12.6.

#175: mautrix/python#175

v0.20.7 (2025-01-03)

• (types) Removed support for generating reply fallbacks to implement MSC2781. Stripping fallbacks is still supported.

v0.20.6 (2024-07-12)

• (bridge) Added /register call if /versions fails with M_FORBIDDEN.

v0.20.5 (2024-07-09)

Note: The bridge module is deprecated as all bridges are being rewritten

... (truncated)

Commits

• 8c0b33a BUmp version to 0.21.1
• 6283e27 Update CI
• dad6bd5 Adjust manhole flags
• 9d827fa Add event handling middlewares to syncer
• bea9e63 Update black and isort
• 8e0dcef Fix transaction in abstract crypto store
• 89ebd5f Fix parsing /messages response
• 2296ac7 Fix join rule types
• d7cb10b Catch invalid invites in sync
• 93dea5a Dispatch unknown decrypted to-device events to event handlers
• See full diff in compare view

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