Rolling Playwright-dotnet to the latest Playwright driver

Pre-requisites

remove old gen files: find src/Playwright | grep Generated | xargs rm
install dotnet with installer: https://dotnet.microsoft.com/download/dotnet/5.0
install dotnet format tool: dotnet tool install -g dotnet-format
install PowerShell

Rolling

obtain the commit hash (long form) to where we're rolling to
in the repo folder, run
```
.\Build.ps1 roll <commit hash>
```

This will complete the entire process including replacing the version number and downloading drivers.