Powershell install from the public feed

Author: Pavel Purma

src/azurelinux/4.0/net11.0/build/amd64/Dockerfile

@@ -1,6 +1,7 @@
 FROM mcr.microsoft.com/dotnet/sdk:10.0-azurelinux3.0 AS powershell
 ENV POWERSHELL_VERSION=7.6.1
-RUN dotnet tool install --tool-path /powershell --version ${POWERSHELL_VERSION} PowerShell
+ARG DOTNET_PUBLIC_FEED=https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json
+RUN dotnet tool install --tool-path /powershell --version ${POWERSHELL_VERSION} PowerShell --source ${DOTNET_PUBLIC_FEED}
 
 FROM mcr.microsoft.com/azurelinux-beta/base/core:4.0
 

src/azurelinux/4.0/net11.0/crossdeps/amd64/Dockerfile

@@ -1,6 +1,7 @@
 FROM mcr.microsoft.com/dotnet/sdk:10.0-azurelinux3.0 AS powershell
 ENV POWERSHELL_VERSION=7.6.1
-RUN dotnet tool install --tool-path /powershell --version ${POWERSHELL_VERSION} PowerShell
+ARG DOTNET_PUBLIC_FEED=https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json
+RUN dotnet tool install --tool-path /powershell --version ${POWERSHELL_VERSION} PowerShell --source ${DOTNET_PUBLIC_FEED}
 
 FROM mcr.microsoft.com/azurelinux-beta/base/core:4.0