Replaced pip install with uv pip install for PlatformIO.

Author: Jason2866

.github/workflows/example.yml

@@ -21,10 +21,14 @@ jobs:
         uses: actions/setup-python@v5
         with:
            python-version: "3.13"
-      - name: Install dependencies
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+        with:
+          version: "latest"
+          enable-cache: false
+      - name: Install pio
         run: |
-          pip install wheel
-          pip install -U https://github.com/pioarduino/platformio-core/archive/refs/tags/v6.1.18.zip
+          uv pip install --system -U https://github.com/pioarduino/platformio-core/archive/refs/tags/v6.1.18.zip
       - name: Build example
         run: |
           pio run