changelog: 8.2.0

[oliver-sanders]

Update the changelog for release.

https://github.com/cylc/cylc-doc/pull/620/files#diff-5e32020ee8ca62dbbb32fa32a90cd6e4a0d08691f3b1c61550459564b4c0a066R31

[wxtim]

@oliver-sanders - you want me to look for any other changes required or confirm that I've looked, don't think they are required and close the issue?

[oliver-sanders]

Skim the changelogs and make sure that every substantial user-facing feature is represented.

[wxtim]

The only things that I think might be worth adding are

• Restoration of -n in VIP 5227
• Restart with timeout 5231
• You can now run Cylc VR from Cylc TUI! 5381
• -z 5433 (unless we are keeping that under our hat)

Items 1, 3 and 4 could be a single section called something like CLI & TUI and given one bullet point each.

@oliver-sanders what do you think?

[oliver-sanders]

Nah, nothing worth adding.