Dockerfile vscDebugger Problem

Dockerfile

FROM ubuntu:focal

SHELL ["/bin/bash", "-c"]

ENV R_VERSION=4.1.1 \
    # See https://packagemanager.rstudio.com/client/#/repos/1/overview
    R_REPOS=https://packagemanager.rstudio.com/all/__linux__/focal/4526215 \
    DISPLAY=:0 \
    TZ=Europe/Berlin

ARG DEBIAN_FRONTEND=noninteractive

# Ubuntu Setup
RUN apt-get update &&\
    apt-get -y --no-install-recommends install \
    software-properties-common \
    git \
    build-essential \
    tar \
    curl \
    dirmngr \
    gnupg-agent \
    fontconfig \
    pandoc \
    perl \
    python3-pip \
    wget \
    libcurl4-openssl-dev \
    openssl \
    libssl-dev \
    libmagick++-dev \
    libpoppler-cpp-dev \
    netbase \
    libxml2-dev \
    gdb \
    libgsl-dev \
    libudunits2-dev \
    libgdal-dev \
    libharfbuzz-dev \
    libfribidi-dev \
    vim \
    cargo \
    locales &&\
    locale-gen en_US.UTF-8

# Install R
RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys \
    E298A3A825C0D65DFD57CBB651716619E084DAB9 \
    && add-apt-repository 'deb https://cloud.r-project.org/bin/linux/ubuntu focal-cran40/' \
    && apt-get -y install --no-install-recommends r-base=${R_VERSION}* r-base-core=${R_VERSION}* \
    r-recommended=${R_VERSION}* r-base-dev=${R_VERSION}*

# This does not work:
RUN Rscript -e "install.packages('devtools', repos= '$R_REPOS')"
RUN Rscript -e "remotes::install_github('ManuelHentschel/vscDebugger@v0.4.7', repos= '$R_REPOS')"

# This works:
# RUN Rscript -e "remotes::install_github('ManuelHentschel/vscDebugger@v0.4.5', repos= '$R_REPOS')"

# Set the default shell to zsh rather than bash
ENTRYPOINT [ "/bin/zsh" ]

Thank you! In particular for the dependabot hint.