Merge bitcoin/bitcoin#23043: ci: Set --nocleanup for Windows functional tests

fac67b3 ci: Set --nocleanup for Windows functional tests (MarcoFalke)

Pull request description:

  Example: https://cirrus-ci.com/task/6292402450202624

ACKs for top commit:
  hebasto:
    ACK fac67b3

Tree-SHA512: b8da82d1492f66b43e4afc525805a42709a7b13e64320681801e3e5b546da3d82933f5248464900620aa89eac4629f0b21cde623caf45950f1341979b47fa621

Author: fanquake

.cirrus.yml

@@ -148,7 +148,7 @@ task:
     - python test\util\rpcauth-test.py
   functional_tests_script:
     # TODO enable '--extended' and drop '--exclude'.
-    - python test\functional\test_runner.py --ci --quiet --combinedlogslen=4000 --jobs=4 --timeout-factor=8 --exclude %EXCLUDE_TESTS% --failfast
+    - python test\functional\test_runner.py --nocleanup --ci --quiet --combinedlogslen=4000 --jobs=4 --timeout-factor=8 --exclude %EXCLUDE_TESTS% --failfast
 
 task:
   name: 'ARM [unit tests, no functional tests] [bullseye]'