Sync workflow steps order in "Check Python" workflow with template

No real functional difference or real advantage to either order, but this is the way it is in the standardized "template"
workflow, so it must be so here as well.

Author: per1234

.github/workflows/check-python-task.yml

@@ -37,12 +37,6 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v2
 
-      - name: Install Task
-        uses: arduino/setup-task@v1
-        with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          version: 3.x
-
       - name: Install Python
         uses: actions/setup-python@v2
         with:
@@ -51,5 +45,11 @@ jobs:
       - name: Install Poetry
         run: pip install poetry
 
+      - name: Install Task
+        uses: arduino/setup-task@v1
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          version: 3.x
+
       - name: Run flake8
         run: task python:lint