replace safety with pip-audit

.github/workflows/python-package.yml

@@ -27,10 +27,10 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install flake8 safety
+        python -m pip install flake8 pip-audit
         pip install -r requirements-test-${{ matrix.python-version }}.txt
     - name: Check dependencies for known security vulnerabilities
-      run: safety check -r requirements-test-${{ matrix.python-version }}.txt
+      run: pip-audit -r requirements-test-${{ matrix.python-version }}.txt
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names