Original PR description

When a channel is left, a `discuss.channel/new_message` and a
`discuss.channel/leave` notifications are received from the bus in the
same batch. Before [1], we checked if a `discuss.channel/leave`
notification was received as part of the same batch and we ignore the
`discuss.channel/new_message` one if it was the case.

After [1], the check is not done anymore which results in fetching the
channel infos of the channel that was just left.

This PR adapts the code to only remove the channel member of the
current user instead of deleting the whole channel. This prevents the
channel info request since it is already known.

Steps to reproduce the issue:
- Go to the discuss app
- Join a channel
- Leave the channel
- Notice that à call to `/discuss/channel/info` was done for the channel
that was left.

[1]: https://github.com/odoo/odoo/pull/147747

Original PR description

[FIX] account_reports: adapt pil usage for ubuntu noble
    
    The `getsize` method on a FreeTypeFont object was deprecated [0] in Pillow
    9.2.0. Ubuntu Noble provides Pillow 10.2.0. They advise to use `getbbox`
    which is already available in Pillow 9.0.1 provided by Ubuntu Jammy.
    
See: https://pillow.readthedocs.io/en/stable/releasenotes/9.2.0.html#font-size-and-offset-methods

[FIX] account_report: adapt xlsxwriter usage for ubuntu noble
    
    The `col_sizes` attribute on an worksheet was removed in xlsxwriter
    version 3.0.6 [0]. Ubuntu Noble provides xlsxwriter 3.1.9.
    The xlsxwriter author advises [1] to use the `col_info` attribute
    instead, but this attribute appeared in 3.0.6 too (rename of `colinfo`).
    
    With this commit, the version is checked in order to use the right
    attribute.
    
See: jmcnamara/XlsxWriter@860f4a2404549aca1eccf9bf8361df95dc574f44
and jmcnamara/XlsxWriter#937