Use standard workflow step order from template

No functional change, and neither is necessarily superior, but this is how it is in the "template", and so it must be
here as well.

Author: per1234

.github/workflows/test-go-integration-task.yml

@@ -51,12 +51,6 @@ jobs:
         with:
           go-version: ${{ env.GO_VERSION }}
 
-      - 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:
@@ -65,5 +59,11 @@ 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 integration tests
         run: task go:test-integration