Merge branch 'development'

Update to 4.3.2
**Enhancements**
* A totally new PipeWire backend featuring full synchronisation.

**Bug Fixes**
* Stability improvements for the PulseAudio backend.
* Fix a crash when the Avahi subsystem became disconnected. This is normally a rare occurrence, but Shairport Sync was not dereferencing obsolete data correctly when it happened.
* Set and reset Bonjour flags correctly when it's a Classic Airplay session in AirPlay 2 operation.
* Fix a number of FreeBSD compilation errors and warnings.
* Fix various errors when breaking into an existing session to terminate it. Thanks again to [aaronk6](https://github.com/aaronk6).
* Fix some debug message errors, sigh. Thanks to [Nathan Gray](https://github.com/n8gray).

diff --cc configure.ac
index c1801282eb9a2c946493fec73cb2dcbac176a9d5,cc047293b1ce43fd758fe2db9b07d8627a77daa7..4c61a810f08ab8ed98e22523d8899ffa3a94bb5c
--- 1/configure.ac
--- 2/configure.ac
+++ b/configure.ac
@@@ -2,7 -2,7 +2,7 @@@
  # Process this file with autoconf to produce a configure script.
  
  AC_PREREQ([2.50])
- AC_INIT([shairport-sync], [4.3.1], [4265913+mikebrady@users.noreply.github.com])
 -AC_INIT([shairport-sync], [4.3.2-dev], [4265913+mikebrady@users.noreply.github.com])
++AC_INIT([shairport-sync], [4.3.2], [4265913+mikebrady@users.noreply.github.com])
  AM_INIT_AUTOMAKE([subdir-objects])
  AC_CONFIG_SRCDIR([shairport.c])
  AC_CONFIG_HEADERS([config.h])