Install uv via GH Action (faster)

Author: Jason2866

.github/workflows/examples.yml

@@ -58,9 +58,13 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: "3.13"
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+        with:
+          version: "latest"
+          enable-cache: false
       - name: Install dependencies
         run: |
-          pip install uv
           uv pip install --system -U https://github.com/pioarduino/platformio-core/archive/refs/tags/v6.1.18.zip
           pio pkg install --global --platform file://.
       - name: git clone Tasmota and add to examples