fix: revert py version spec

Author: hnrobert

solutions/package-matrix.yml

@@ -20,7 +20,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
         run: |
-          python${{ matrix.python-version }} -m pip install --upgrade pip
+          python -m pip install --upgrade pip
           pip install -r requirements.txt
           pip install pyinstaller
       - name: Build with PyInstaller