delete usuned steps

.github/workflows/python-package.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11"]
+        python-version: ["3.11"]
 
     steps:
     - uses: actions/checkout@v4
@@ -27,9 +27,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install flake8 pytest
         pip install --upgrade pyinstaller
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Compile to exe
       run: |
         pyinstaller update-pc-script.py