Pin task version to 3.9.0 because of the PATH on win bug (#1576)

* pin task version to verify if can recognize correctly the PATH on win

* pin task version in workflows running on windows

Author: umbynos

Diff for: .github/workflows/test-go-integration-task.yml

@@ -109,7 +109,7 @@ jobs:
         uses: arduino/setup-task@v1
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
-          version: 3.x
+          version: 3.9.0
 
       - name: Build Arduino CLI
         run: task go:build

Diff for: .github/workflows/test-go-task.yml

@@ -83,7 +83,7 @@ jobs:
         uses: arduino/setup-task@v1
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
-          version: 3.x
+          version: 3.9.0
 
       - name: Run tests
         run: task go:test