chore: update powershell min version requirement (#13425)

Author: vaind

docs/platforms/powershell/index.mdx

@@ -13,7 +13,7 @@ categories:
 
 On this page, we get you up and running with Sentry's PowerShell SDK. The PowerShell Sentry SDK is tested to work with:
 
-- PowerShell 7.2+ on Windows, macOS, and Linux
+- PowerShell 7.4+ on Windows, macOS, and Linux
 - Windows PowerShell 5.1
 
 The PowerShell SDK is based on the Sentry .NET SDK. You can refer to the [.NET SDK docs](/platforms/dotnet/configuration) for the documentation of advanced features you don't find here.