Use micromamba run instead of activate during build

Author: ethho

Dockerfile

@@ -8,6 +8,7 @@ ARG HOST_UID=1000
 RUN ${CONDA_BIN} install --no-pin -qq -y -n base -c conda-forge \
         python=${PY_VER} pip setuptools git graphviz pydot && \
     ${CONDA_BIN} clean -qq -afy
+ENV PATH="$PATH:/home/mambauser/.local/bin"
 
 COPY --chown=${HOST_UID:-1000}:mambauser ./pyproject.toml ./README.md ./LICENSE.txt /main/
 COPY --chown=${HOST_UID:-1000}:mambauser ./datajoint /main/datajoint
@@ -18,9 +19,6 @@ USER root
 RUN \
     chown -R ${HOST_UID:-1000}:mambauser /main && \
     chown -R ${HOST_UID:-1000}:mambauser /src && \
-    eval "$(micromamba shell hook --shell bash)" && \
-    micromamba activate base && \
-    pip install -q --no-cache-dir /main && \
+    micromamba run -n base pip install -q --no-cache-dir /main && \
     rm -r /main/*
 USER ${MAMBA_USER}
-ENV PATH="$PATH:/home/mambauser/.local/bin"