Add dotnet uninstall scripts

Author: OpenByteDev

.github/scripts/uninstall-dotnet-linux

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+sudo apt remove 'dotnet*'
+sudo apt remove 'aspnetcore*'

.github/scripts/uninstall-dotnet-windows.ps1

@@ -0,0 +1,19 @@
+Write-Output "Starting .NET uninstall on Windows..."
+
+$uninstallToolPath = "C:\Program Files\dotnet-core-uninstall\dotnet-core-uninstall.exe"
+$uninstallToolDownloadUrl = "https://aka.ms/dotnet-core-uninstall-tool-win"
+
+# Install uninstall tool
+Write-Output "Downloading .NET Uninstall Tool..."
+$zipPath = "$env:TEMP\dotnet-core-uninstall-tool.zip"
+Invoke-WebRequest -Uri $uninstallToolDownloadUrl -OutFile $zipPath
+
+Write-Output "Extracting..."
+Expand-Archive -Path $zipPath -DestinationPath "C:\Program Files\dotnet-core-uninstall" -Force
+Remove-Item $zipPath
+
+# Perform uninstall
+Write-Output "Removing all SDKs and runtimes..."
+& "$uninstallToolPath" remove --all
+
+Write-Output ".NET uninstall process completed."