Fix outdated apt cache

Author: kalxas

.github/workflows/main.yml

@@ -33,6 +33,7 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install requirements 📦
       run: |
+        sudo apt update
         sudo apt install -y libgeos-dev libpq-dev libxml2-dev libxslt1-dev libz-dev libexpat1 python3-distutils-extra
         pip3 install setuptools
         pip3 install -r requirements.txt