nheko 0.12.0 requests image attachments with a deprecated URL scheme

[dstu]

Describe the bug

In nheko 0.12.0 (installed via Debian apt), the URL that nheko requests for images attached to messages are for the /_matrix/media/v3/ endpoints. Per https://spec.matrix.org/unstable/client-server-api/#content-repository, these are in the process of being deprecated. URLs of the form /_matrix/client/v1/media/ should be used, instead. Our server is running matrix-synapse-py3 1.20.2+bullseye1 (also installed via Debian apt).

To Reproduce

1. Connect to a Matrix server that uses newer image URLs.
2. Have someone send an image with a message attachment.
3. Observe that the message doesn't come through properly.
4. The server's access logs should show that nheko requested a URL with an old-style path component.

What happened?

No response

Expected behavior

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Screenshots

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Version

0.12.0

Operating system

Linux

Installation method

Some repository (AUR, homebrew, distribution repository, PPA, etc)

Qt version

No response

C++ compiler

No response

Desktop Environment

X11 (Window Maker)

Did you use profiles?

• Profiles used?

Relevant log output

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Backtrace

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