⚡️(ci) use setup-python cache option

The setup-python action is able to cache the dependencies and reuse this
cache while the pyproject file has not changed. It is easy to setup,
just the package manager used has to be declared in the cache settings.

.github/workflows/crowdin_upload.yml

@@ -23,9 +23,10 @@ jobs:
         uses: actions/checkout@v4
       # Backend i18n
       - name: Install Python
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v5
         with:
           python-version: "3.13.3"
+          cache: "pip"
       - name: Upgrade pip and setuptools
         run: pip install --upgrade pip setuptools
       - name: Install development dependencies