message: Updated dockerfile to support modern Conan and GH CLI.
diff: FROM mcr.microsoft.com/dotnet/sdk:5.0-focal
  +RUN apt update \
  + && apt install -y \
  + gnupg \
  + dirmngr
  +
  +RUN curl -fsSL https://cli.github.com/packages/githubcli-archive-keyring.gpg | gpg --dearmor -o /usr/share/keyrings/githubcli-archive-keyring.gpg
  +
  +RUN echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" | tee /etc/apt/sources.list.d/github-cli.list > /dev/null
  +
  RUN apt update \
  && apt install -y \
  clang \
  @@ -25,6 +34,8 @@ RUN apt update \
  libxcb-dri3-dev \
  libxcb-util-dev \
  python3-pip \
  + gh \
  && rm -rf /var/lib/apt/lists/*
  RUN pip3 install conan
  +
  