ci: use bpmn-io/actions/setup

Related to bpmn-io/internal-docs#1115

Author: nikku

.github/workflows/CI.yml

@@ -21,6 +21,8 @@ jobs:
       with:
         node-version: ${{ matrix.node-version }}
         cache: 'npm'
+    - name: Setup project
+      uses: bpmn-io/actions/setup@latest
     - name: Install dependencies
       run: npm ci
     - name: Install dependencies for integration test