don't force setuptools upgrade during installation of requirements for testing

upgrade caused InvalidVersion: Invalid version: '0.23ubuntu1' on Ubuntu due to setuptools dropping support for that version format

Author: lostmsu

.github/workflows/ARM.yml

@@ -27,7 +27,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-          pip install --upgrade -r requirements.txt
+          pip install -r requirements.txt
           pip install pytest numpy # for tests
 
       - name: Build and Install

requirements.txt

@@ -8,8 +8,7 @@ codecov
 
 wheel
 pycparser
-setuptools
-clr-loader
+clr-loader==0.2.*
 
 # Discover libpython
-find_libpython
+find_libpython==0.3.*