Update Task installation method in workflows to use official setup action

Author: robert-hoffmann

.github/workflows/README.md

@@ -55,10 +55,14 @@ This keeps job output focused, preserves parallelism, and still centralizes the
   - check out the repo
   - install Python 3.12
   - install `uv` with `astral-sh/setup-uv`
-  - install Task with `arduino/setup-task`
+  - install Task with `go-task/setup-task`
   - run `uv sync`
   - execute the relevant Taskfile task
 
+Task is installed through the official setup action rather than the
+`taskfile.dev` shell installer. The workflow pins the Task binary version so
+CI does not depend on resolving the latest GitHub release during each run.
+
 ### Local Equivalent
 
 - Full parity check: `task check`

.github/workflows/quality.yml

@@ -48,10 +48,10 @@ jobs:
       - uses: astral-sh/setup-uv@v8.1.0
 
       - name: Install Task
-        run: sh -c "$(curl --location https://taskfile.dev/install.sh)" -- -d -b "$HOME/.local/bin"
-
-      - name: Add Task to PATH
-        run: echo "$HOME/.local/bin" >> "$GITHUB_PATH"
+        uses: go-task/setup-task@v2
+        with:
+          version: 3.50.0
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Sync Python tooling
         run: uv sync