Fix python version in CI

Author: kneasle

.github/workflows/publish-to-pypi.yml

@@ -16,13 +16,13 @@ jobs:
     - uses: actions/checkout@v2
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip
-        pip install setuptools wheel twine
-        pip install -r requirements.txt
+        python3 -m pip install --upgrade pip
+        python3 -m pip install setuptools wheel twine
+        pip3 install -r requirements.txt
     - name: Run linter
-      run: python -m pylint wheatley/**/*.py
+      run: python3 -m pylint wheatley/**/*.py
     - name: Run tests
-      run: python -m pytest
+      run: python3 -m pytest
     - name: Run fuzzer
       run: ./fuzz
     - name: Make version file
@@ -34,5 +34,5 @@ jobs:
         TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
         TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
       run: |
-        python setup.py sdist bdist_wheel
-        twine upload dist/*
+        python3 setup.py sdist bdist_wheel
+        python3 -m twine upload dist/*