Run the types-scenarios checking with node 14, instead of the volta-default of 12 -- TS 5.1 does not support node 12

Author: NullVoxPopuli

.github/workflows/ci-build.yml

@@ -50,6 +50,9 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - uses: volta-cli/action@v1
+        with:
+          # TS 5.1 does not support node 12
+          node-version: 14.x
       - name: install dependencies
         run: yarn install --frozen-lockfile
       - name: Swap TS Version