workflows: build-matplotlib: fix python install field ordering

Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>

Author: threexc

.github/workflows/build-matplotlib.yml

@@ -55,8 +55,8 @@ jobs:
           fetch-depth: 0
           persist-credentials: false
 
-      - uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39  # v8.2.0
-        name: Install Python
+      - name: Install Python
+        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39  # v8.2.0
         with:
           python-version: '3.12'
           activate-environment: true