Merge bitcoin/bitcoin#26297: ci: Use all available CPUs for functional tests in "Win64 native" task

6fbd173 ci: Use all available CPUs for functional tests in "Win64 native" task (Hennadii Stepanov)

Pull request description:

  On the [master](https://cirrus-ci.com/task/5422842484359168) branch:
  ![Screenshot from 2022-10-12 09-45-58](https://user-images.githubusercontent.com/32963518/195296883-3852ea09-7345-4166-b855-7704dcd87202.png)

  This [PR](https://cirrus-ci.com/task/6392972617973760) branch:
  ![Screenshot from 2022-10-12 11-11-15](https://user-images.githubusercontent.com/32963518/195315902-f667874a-8aeb-4f2f-bdc3-5ba432ae9353.png)

  Also consider "CPU Usage" charts provided by CI.

  Overlooked in cda6265 (bitcoin/bitcoin#25929).

ACKs for top commit:
  hebasto:
    Indeed. Reverted back to 6fbd173 ([pr26297.01](https://github.com/hebasto/bitcoin/commits/pr26297.01)), which was already [ACKed](bitcoin/bitcoin#26297 (review)) by @aureleoules.
  aureleoules:
    ACK 6fbd173
  jarolrod:
    ACK 6fbd173
  shaavan:
    ACK 6fbd173

Tree-SHA512: ddd4b41af95bd735f881a3b2c64ee308de2725381f770e313e66555f929d88c8848c98cc5fcd15dfa6845b5dd84ca6c8764ef5d01602b0a62041820856af2b98

Author: fanquake

.cirrus.yml

@@ -184,7 +184,7 @@ task:
     - netsh int ipv4 set dynamicport tcp start=1025 num=64511
     - netsh int ipv6 set dynamicport tcp start=1025 num=64511
     # Exclude feature_dbcrash for now due to timeout
-    - python test\functional\test_runner.py --nocleanup --ci --quiet --combinedlogslen=4000 --jobs=4 --timeout-factor=8 --extended --exclude feature_dbcrash
+    - python test\functional\test_runner.py --nocleanup --ci --quiet --combinedlogslen=4000 --jobs=6 --timeout-factor=8 --extended --exclude feature_dbcrash
 
 task:
   name: 'ARM [unit tests, no functional tests] [bullseye]'