fail2ban service fails to start

[Grant Slater]

fail2ban systemd service fails to start on Ubuntu 24.04 because python 3.12 no longer comes with bundled version of pyasynchat.

```
PYTHONNOUSERSITE=1 /usr/bin/fail2ban-server -xf start
2024-04-23 13:28:10,715 fail2ban.configreader [3819]: WARNING 'allowipv6' not defined in 'Definition'. Using default one: 'auto'
2024-04-23 13:28:10,726 fail2ban [3819]: ERROR No module named 'asynchat'
```

Upstream bug: https://github.com/fail2ban/fail2ban/issues/3487
Upstream fix: https://github.com/fail2ban/fail2ban/commit/1024452fe1befeb5a0a014386a81ec183cd45bb5

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: fail2ban 1.0.2-3
Uname: Linux 6.6.22-linuxkit aarch64
ApportVersion: 2.28.1-0ubuntu2
Architecture: arm64
CasperMD5CheckResult: unknown
CloudBuildName: ubuntu-oci:minimized
CloudSerial: 20240407.1
Date: Tue Apr 23 13:25:22 2024
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 TERM=xterm
SourcePackage: fail2ban
UpgradeStatus: No upgrade log present (probably fresh install)

[Grant Slater (firefishy)]

Duplicate of: https://bugs.launchpad.net/ubuntu/+source/fail2ban/+bug/2055114