third_party: Update waf to version 2.0.22

third_party: Update waf to version 2.0.22

New in waf 2.0.22

* Fix stdin propagation with faulty vcvarsall scripts #2315
* Enable mixing Unix-style paths with destdir on Windows platforms #2337
* Fix shell escaping unit test parameters #2314
* Improve extras/clang_compilation_database and extras/swig compatibility #2336
* Propagate C++ flags to the Cuda compiler in extras/cuda #2311
* Fix detection of Qt 5.0.0 (preparation for Qt6) #2331
* Enable Haxe processing #2308
* Fix regression in MACOSX_DEPLOYMENT_TARGET caused by distutils #2330
* Fix extras/wafcache concurrent trimming issues #2312
* Fix extras/wafcache symlink handling #2327

The import was done like this:

./third_party/waf/update.sh

Then changing buildtools/bin/waf and buildtools/wafsamba/wafsamba.py
by hand.

Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>

Signed-off-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Sep  2 21:22:17 UTC 2021 on sn-devel-184