ci: enable corepack

Author: paul-soporan

.github/workflows/integration-workflow.yml

@@ -214,6 +214,12 @@ jobs:
       with:
         node-version: ${{matrix.node}}.x
 
+    - name: 'Enable corepack'
+      run: |
+        npm i -g corepack
+        corepack enable
+      shell: bash
+
     - uses: actions/download-artifact@v2
       with:
         name: yarn-artifacts