mswin builds are missing bundle executable in Bash

https://github.com/ruby/setup-ruby/actions/runs/11391394046/job/31695188901?pr=657

Run which -a ruby bundle
which: no bundle in (/d/ruby-mswin/bin:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/VC/Tools/MSVC/14.29.30133/bin/HostX64/x64:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Common7/IDE/VC/VCPackages:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Common7/IDE/CommonExtensions/Microsoft/TestWindow:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Common7/IDE/CommonExtensions/Microsoft/TeamFoundation/Team Explorer:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/MSBuild/Current/bin/Roslyn:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Team Tools/Performance Tools/x64:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Team Tools/Performance Tools:/c/Program Files (x86)/Microsoft Visual Studio/Shared/Common/VSPerfCollectionTools/vs2019/x64:/c/Program Files (x86)/Microsoft Visual Studio/Shared/Common/VSPerfCollectionTools/vs2019:/c/Program Files (x86)/Microsoft SDKs/Windows/v10.0A/bin/NETFX 4.8 Tools/x64:/c/Program Files (x86)/HTML Help Workshop:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Common7/IDE/CommonExtensions/Microsoft/FSharp/Tools:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Common7/Tools/devinit:/c/Program Files (x86)/Windows Kits/10/bin/10.0.22621.0/x64:/c/Program Files (x86)/Windows Kits/10/bin/x64:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/MSBuild/Current/Bin:/c/Windows/Microsoft.NET/Framework64/v4.0.30319:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Common7/IDE:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Common7/Tools:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/VC/Tools/Llvm/x64/bin:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Common7/IDE/CommonExtensions/Microsoft/CMake/CMake/bin:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Common7/IDE/CommonExtensions/Microsoft/CMake/Ninja:/c/Program Files (x86)/Microsoft Visual Studio/2019/Enterprise/Common7/IDE/VC/Linux/bin/ConnectionManagerExe:/ucrt64/bin:/usr/bin:/c/Program Files/MongoDB/Server/5.0/bin:/c/aliyun-cli:/c/vcpkg:/c/cf-cli:/c/Program Files (x86)/NSIS:/c/tools/zstd:/c/Program Files/Mercurial:/c/hostedtoolcache/windows/stack/3.1.1/x64:/c/cabal/bin:/c/ghcup/bin:/c/mingw64/bin:/c/Program Files/dotnet:/c/Program Files/MySQL/MySQL Server 5.7/bin:/c/Program Files/R/R-4.4.1/bin/x64:/c/SeleniumWebDrivers/GeckoDriver:/c/SeleniumWebDrivers/EdgeDriver:/c/SeleniumWebDrivers/ChromeDriver:/c/Program Files (x86)/sbt/bin:/c/Program Files (x86)/GitHub CLI:/c/Program Files/Git/bin:/c/Program Files (x86)/pipx_bin:/c/npm/prefix:/c/hostedtoolcache/windows/go/1.21.13/x64/bin:/c/hostedtoolcache/windows/Python/3.7.9/x64/Scripts:/c/hostedtoolcache/windows/Python/3.7.9/x64:/c/Program Files/OpenSSL/bin:/c/tools/kotlinc/bin:/c/hostedtoolcache/windows/Java_Temurin-Hotspot_jdk/8.0.422-5/x64/bin:/c/Program Files/ImageMagick-7.1.1-Q16-HDRI:/c/Program Files/Microsoft SDKs/Azure/CLI2/wbin:/c/ProgramData/kind:/c/Program Files/Eclipse Foundation/jdk-8.0.302.8-hotspot/bin:/c/ProgramData/Chocolatey/bin:/c/Windows/system32:/c/Windows:/c/Windows/System32/Wbem:/c/Windows/System32/WindowsPowerShell/v1.0:/c/Windows/System32/OpenSSH:/c/Program Files/PowerShell/7:/c/Program Files/Microsoft/Web Platform Installer:/c/Program Files/TortoiseSVN/bin:/c/Program Files/Microsoft SQL Server/130/Tools/Binn:/c/Program Files/Microsoft SQL Server/Client SDK/ODBC/170/Tools/Binn:/c/Program Files (x86)/WiX Toolset v3.14/bin:/c/Program Files (x86)/Windows Kits/10/Windows Performance Toolkit:/c/Program Files (x86)/Microsoft SQL Server/110/DTS/Binn:/c/Program Files (x86)/Microsoft SQL Server/120/DTS/Binn:/c/Program Files (x86)/Microsoft SQL Server/130/DTS/Binn:/c/Program Files (x86)/Microsoft SQL Server/140/DTS/Binn:/c/Program Files (x86)/Microsoft SQL Server/150/DTS/Binn:/c/Program Files (x86)/Microsoft SQL Server/160/DTS/Binn:/c/Strawberry/c/bin:/c/Strawberry/perl/site/bin:/c/Strawberry/perl/bin:/c/ProgramData/chocolatey/lib/pulumi/tools/Pulumi/bin:/c/Program Files/CMake/bin:/c/ProgramData/chocolatey/lib/maven/apache-maven-3.8.7/bin:/c/Program Files/Microsoft Service Fabric/bin/Fabric/Fabric.Code:/c/Program Files/Microsoft SDKs/Service Fabric/Tools/ServiceFabricLocalClusterManager:/c/Program Files/nodejs:/c/Program Files/Git/cmd:/c/Program Files/Git/mingw64/bin:/c/Program Files/Git/usr/bin:/c/Program Files/GitHub CLI:/c/tools/php:/c/Program Files (x86)/sbt/bin:/c/Program Files/Amazon/AWSCLIV2:/c/Program Files/Amazon/SessionManagerPlugin/bin:/c/Program Files/Amazon/AWSSAMCLI/bin:/c/Program Files (x86)/Google/Cloud SDK/google-cloud-sdk/bin:/c/Program Files (x86)/Microsoft BizTalk Server:/c/Program Files/LLVM/bin:/c/Users/runneradmin/.dotnet/tools:/c/Users/runneradmin/.cargo/bin:/c/Users/runneradmin/AppData/Local/Microsoft/WindowsApps)
/d/ruby-mswin/bin/ruby

cc @MSP-Greg