fix(docker): Use proper Erlang binaries for our builds (#577)

The existing package paths for the compiled Erlang binaries
are no longer valid. This patch fixes them with the new ones
and fixes Docker image building.

Note that we are using the binaries compiled for Debian `bullseye`
instead of our `bookworm` version as they are not available yet.

One needs to check https://www.erlang-solutions.com/downloads/#

Author: BYK

Dockerfile

@@ -54,8 +54,11 @@ RUN : \
   && rm /tmp/packages-microsoft-prod.deb \
   && curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add - \
   && echo "deb [arch=amd64] https://download.docker.com/linux/debian ${VERSION_CODENAME} stable" >> /etc/apt/sources.list \
-  && curl -fsSL https://packages.erlang-solutions.com/debian/erlang_solutions.asc | apt-key add - \
-  && echo 'deb https://packages.erlang-solutions.com/debian bullseye contrib' >> /etc/apt/sources.list \
+  # Note we use the Erlang Solutions-provided binaries as the ones in Debian were too old
+  # This may have changed and we may want to revert back to official Debian packages
+  # See https://www.erlang-solutions.com/downloads/#
+  && curl -fsSL https://binaries2.erlang-solutions.com/GPG-KEY-pmanager.asc | apt-key add - \
+  && echo "deb https://binaries2.erlang-solutions.com/debian bullseye-elixir-1.15 contrib" >> /etc/apt/sources.list \
   && apt-get update -qq \
   && apt-get install -y --no-install-recommends \
     dotnet-sdk-9.0 \