Update ci.yaml

use actions/cache@v3 instead of v2

Author: Jeniffere

.github/workflows/ci.yaml

@@ -37,7 +37,7 @@ jobs:
 
       - name: Load cached venv
         id: cached-poetry-dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: .venv
           key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}