Merge bitcoin/bitcoin#30242: ci: Native Windows CI job cleanup

0d3ef83 ci: Use relative paths in `win64-native` CI job consistently (Hennadii Stepanov)
501acee ci: Remove no longer needed workaround for GHA Windows images (Hennadii Stepanov)

Pull request description:

  This PR:

  1. Removes no longer needed workaround for GHA Windows images.

  GHA Windows images previously had multiple VC Build Tools installed, which required specifying the `VCPKG_PLATFORM_TOOLSET_VERSION` explicitly to avoid linker errors. This issue has been resolved as per
  actions/runner-images#9701.

  2. Switches all references to temporary files to relative ones for consistency and readability.

ACKs for top commit:
  sipsorcery:
    ACK 0d3ef83.
  maflcko:
    ACK 0d3ef83

Tree-SHA512: e832b87fc6dee1e9d1eb452797f16b732e776c2ecdbe3dc9e64cc48ce9b5b89c569d5b96b999423ae1261ff4bf684b7003af84d8024ef5260682f531c4e8ff5e

Author: fanquake

.github/workflows/ci.yml

@@ -153,12 +153,10 @@ jobs:
 
       - name: Get tool information
         run: |
-          msbuild -version | Out-File -FilePath "$env:GITHUB_WORKSPACE\msbuild_version"
-          Get-Content -Path "$env:GITHUB_WORKSPACE\msbuild_version"
-          $env:VCToolsVersion | Out-File -FilePath "$env:GITHUB_WORKSPACE\toolset_version"
-          Write-Host "VCToolsVersion $(Get-Content -Path "$env:GITHUB_WORKSPACE\toolset_version")"
-          $env:CI_QT_URL | Out-File -FilePath "$env:GITHUB_WORKSPACE\qt_url"
-          $env:CI_QT_CONF | Out-File -FilePath "$env:GITHUB_WORKSPACE\qt_conf"
+          msbuild -version | Tee-Object -FilePath "msbuild_version"
+          $env:VCToolsVersion | Tee-Object -FilePath "toolset_version"
+          $env:CI_QT_URL | Out-File -FilePath "qt_url"
+          $env:CI_QT_CONF | Out-File -FilePath "qt_conf"
           py -3 --version
           Write-Host "PowerShell version $($PSVersionTable.PSVersion.ToString())"
 
@@ -241,10 +239,8 @@ jobs:
         run: |
           Set-Location "$env:VCPKG_INSTALLATION_ROOT"
           Add-Content -Path "triplets\x64-windows-static.cmake" -Value "set(VCPKG_BUILD_TYPE release)"
-          Add-Content -Path "triplets\x64-windows-static.cmake" -Value "set(VCPKG_PLATFORM_TOOLSET_VERSION $env:VCToolsVersion)"
           .\vcpkg.exe --vcpkg-root "$env:VCPKG_INSTALLATION_ROOT" integrate install
-          git rev-parse HEAD | Out-File -FilePath "$env:GITHUB_WORKSPACE\vcpkg_commit"
-          Get-Content -Path "$env:GITHUB_WORKSPACE\vcpkg_commit"
+          git rev-parse HEAD | Tee-Object -FilePath "$env:GITHUB_WORKSPACE\vcpkg_commit"
 
       - name: vcpkg tools cache
         uses: actions/cache@v4