Adds beta version to docker

Author: Microsoft Graph DevX Tooling

Dockerfile

@@ -3,6 +3,7 @@ FROM mcr.microsoft.com/powershell
 ARG VERSION=latest
 
 RUN pwsh -c "if ('${VERSION}' -eq 'latest') { Install-Module Microsoft.Graph -Scope CurrentUser -AllowClobber -Force} else { Install-Module Microsoft.Graph -Scope CurrentUser -AllowClobber -Force -RequiredVersion ${VERSION} }"
+RUN pwsh -c "if ('${VERSION}' -eq 'latest') { Install-Module Microsoft.Graph.Beta -Scope CurrentUser -AllowClobber -Force} else { Install-Module Microsoft.Graph.Beta -Scope CurrentUser -AllowClobber -Force -RequiredVersion ${VERSION} }"
 RUN pwsh -c "if (!(Test-Path -Path \$PROFILE)) { New-Item -ItemType File -Path \$PROFILE -Force } echo 'Import-Module Microsoft.Graph.Authentication' >> \$PROFILE"
 
 LABEL description="# Welcome to Microsoft Graph PowrShell \