Update workflow to remove node 12 deprecation warnings in CI (#280)

Author: anders-kiaer

.github/workflows/webviz-core-components.yml

@@ -23,10 +23,10 @@ jobs:
 
         steps:
             - name: 📖 Checkout commit locally
-              uses: actions/checkout@v2
+              uses: actions/checkout@v3
 
             - name: 🐍 Set up Python ${{ matrix.python-version }}
-              uses: actions/setup-python@v2
+              uses: actions/setup-python@v4
               with:
                   python-version: ${{ matrix.python-version }}