Updated dockerfiles.

Dockerfile_singleuser

@@ -118,7 +118,7 @@ RUN update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1
 RUN apt-get update && apt-get upgrade -y 
 
 # Microsoft repos
-RUN curl -fsSL https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor -o /etc/apt/trusted.gpg.d/packages.microsoft.gpg
+RUN wget -q -O- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor -o /etc/apt/trusted.gpg.d/packages.microsoft.gpg
 RUN curl https://packages.microsoft.com/config/ubuntu/22.04/prod.list >> /etc/apt/sources.list.d/mssql-release.list
 RUN echo "deb [arch=arm64] https://packages.microsoft.com/ubuntu/22.04/prod jammy main" | tee -a /etc/apt/sources.list