Bumped setup-python version to fix Github CI deprecation warnings (#177)

Author: boomanaiden154

.github/workflows/main.yml

@@ -49,14 +49,14 @@ jobs:
       - uses: actions/checkout@v3
       - name: Install Python With Cached pip Packages
         if: needs.Envvars.outputs.do_cache == '1'
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
           cache: 'pip'
           cache-dependency-path: '**/requirements*.txt'
       - name: Install Python, no cache
         if: needs.Envvars.outputs.do_cache == '0'
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - run: pip install -r requirements-ci.txt -q