Merge bitcoin/bitcoin#26299: ci: Use Multi-ToolTask in "Win64 native" task

98c389c ci: Use Multi-ToolTask in "Win64 native" task (Hennadii Stepanov)

Pull request description:

  See https://devblogs.microsoft.com/cppblog/improved-parallelism-in-msbuild/.

  Build time (`ccache` cache has been _invalidated_ to ensure equal initial conditions):
  - on the [master](https://cirrus-ci.com/task/4900469905555456) branch:
  ![image](https://user-images.githubusercontent.com/32963518/195401896-c714cb08-2a41-4eed-afb1-14992f5a9152.png)

  - this [PR](https://cirrus-ci.com/task/5840011785404416) changes:
  ![image](https://user-images.githubusercontent.com/32963518/195412308-3dd823bb-0ecd-481f-8ab8-05643fd4f7c0.png)

  Also consider "CPU Usage" charts provided by CI.

ACKs for top commit:
  aureleoules:
    ACK 98c389c 🎉
  jarolrod:
    ACK 98c389c

Tree-SHA512: 03b7ff48322ab8ab74ca1646df994fb6766ad4dd656f3b89e5ef5bc4756c185354689f44e5e1aa3b193aab895402b4d032b53fa9aa437455d9800e0294d86836

Author: MacroFake

.cirrus.yml

@@ -171,7 +171,7 @@ task:
     - cd %CIRRUS_WORKING_DIR%
     - ccache --zero-stats --max-size=%CCACHE_SIZE%
     - python build_msvc\msvc-autogen.py
-    - msbuild build_msvc\bitcoin.sln -property:CLToolExe=%WRAPPED_CL% -property:Configuration=Release -maxCpuCount -verbosity:minimal -noLogo
+    - msbuild build_msvc\bitcoin.sln -property:CLToolExe=%WRAPPED_CL%;UseMultiToolTask=true;Configuration=Release -maxCpuCount -verbosity:minimal -noLogo
     - ccache --show-stats
   check_script:
     - src\test_bitcoin.exe -l test_suite