Switch to C++-20

docker/ubuntu_22_04_base

@@ -59,16 +59,21 @@ RUN mkdir -p /usr/share/casacore/data && \
 # The casacore version in Ubuntu is too old to support C++20, so install a more recent one.
 RUN  mkdir /external && \
   cd /external && \
-  git clone https://github.com/casacore/casacore.git && \
+  git clone --depth 1 --branch v3.6.0 https://github.com/casacore/casacore.git && \
   cd /external/casacore && \
-  git checkout v3.6.0 && \
   mkdir build && \
   cd build && \
-  cmake .. -DBUILD_PYTHON=OFF -DBUILD_TESTING=OFF -DDATA_DIR=/usr/share/casacore/data && \
+  cmake .. -DBUILD_PYTHON3=ON -DBUILD_TESTING=OFF -DDATA_DIR=/usr/share/casacore/data && \
   make -j`nproc` && \
   make install -j`nproc` && \
   cd /external && \
   rm -rf /external/casacore
+RUN cd /external && \
+  git clone --depth 1 https://github.com/casacore/python-casacore.git && \
+  cd /external/python-casacore && \
+  pip install . && \
+  cd /external && \
+  rm -rf /external/python-casacore
 # Build aoflagger3
 RUN mkdir /aoflagger && cd /aoflagger \
 	&& git clone https://gitlab.com/aroffringa/aoflagger.git src \