[CI] Update the Python version of pyxir

Currently the CMake file for pyxir is looking for things in Python3.6,
so it needs to be upgraded to use 3.7 now that we have moved to use 3.7.
Otherwise the build fails since the 3.6 can't find the pyxir packages
which have moved to 3.7.

Additionally, there seems to be a problem with the newer version of
setuptools installing the pyxir libraries, so reverting these versions
to the previous versions as a workaraound.

Author: ekalda

cmake/modules/contrib/VitisAI.cmake

@@ -17,9 +17,9 @@
 
 if(USE_VITIS_AI)
   set(PYXIR_SHARED_LIB libpyxir.so)
-  find_package(PythonInterp 3.6 REQUIRED)
+  find_package(PythonInterp 3.7 REQUIRED)
   if(NOT PYTHON)
-    find_program(PYTHON NAMES python3 python3.6)
+    find_program(PYTHON NAMES python3 python3.7)
   endif()
   execute_process(COMMAND "${PYTHON_EXECUTABLE}" "-c"
     "import pyxir as px; print(px.get_include_dir()); print(px.get_lib_dir());"

docker/install/ubuntu1804_install_python.sh

@@ -40,7 +40,7 @@ update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.7 1
 #   $ pip download <package>==<version>
 #   $ pip hash --algorithm sha512 <package>.whl
 cat <<EOF > base-requirements.txt
-pip==22.0.3 --hash=sha512:12ca75130a1ce9807060a66dd2341afc7c7e663357ca4b937868dbc733634e11bae49ffff96acb0f5f3fb16cb14f680b9b6d185155a711c6098eda5cfbf2f8f5
-setuptools==60.9.1 --hash=sha512:24c21006f0650209e6a934a5366614e32a98fbdf11bc0e941419731aa3c8cb6d217e486608b4834b8f89c14dc36b3bafa30e795c87b58705be2b156f78acc3c5
+pip==19.3.1 --hash=sha256:6917c65fc3769ecdc61405d3dfd97afdedd75808d200b2838d7d961cebc0c2c7
+setuptools==58.4.0 --hash=sha256:e8b1d3127a0441fb99a130bcc3c2bf256c2d3ead3aba8fd400e5cbbaf788e036
 EOF
 pip3 install -r base-requirements.txt