Updated 'Python package for macOS' workflow (wip)

Author: intjelic

.github/workflows/python-package-macos.yml

@@ -25,12 +25,14 @@ jobs:
         python-version: '3.x'
     - name: Install dependencies
       run: |
-        curl -O https://www.sfml-dev.org/files/SFML-2.5.1-macOS-clang.tar.gz
-        tar -xvf SFML-2.5.1-macOS-clang.tar.gz
-        export CPLUS_INCLUDE_PATH=`pwd`/SFML-2.5.1-macos-clang/include
-        export LIBRARY_PATH=`pwd`/SFML-2.5.1-macos-clang/lib
-        python -m pip install --upgrade pip
-        pip install -r requirements.txt
+        curl -O https://www.sfml-dev.org/files/SFML-$SFML_VERSION-macOS-clang.tar.gz
+        tar -xvf SFML-$SFML_VERSION-macOS-clang.tar.gz
+      working-directory: $HOME
     - name: Build bindings
       run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
         python setup.py build
+      env:
+        CPLUS_INCLUDE_PATH: $HOME/SFML-$SFML_VERSION-macOS-clang/include
+        LIBRARY_PATH: $HOME/SFML-$SFML_VERSION-macOS-clang/lib