Swap node versions in our CI tests (#2444)

* Swap node versions in CI

* Update selenium-assistant

* Switch to npm i for Windows

Author: jeffposnick

.github/workflows/pull-request.yml

@@ -18,11 +18,12 @@ jobs:
           
     - uses: actions/setup-node@v1
       with:
-        node-version: 13.x
+        node-version: 8.x
 
     - name: Setup
       run: |
-        npm ci
+        # Use `npm i` to work around https://github.com/npm/cli/issues/558
+        npm i
         gulp build
 
     - run: npx gulp test-node
@@ -47,7 +48,7 @@ jobs:
 
     - uses: actions/setup-node@v1
       with:
-        node-version: 8
+        node-version: 13.x
 
     - name: Setup
       run: |

package-lock.json

@@ -102,7 +102,7 @@
     "rollup-plugin-babel": "^4.3.3",
     "rollup-plugin-terser": "^5.2.0",
     "rollup-plugin-typescript2": "^0.25.3",
-    "selenium-assistant": "^6.0.0",
+    "selenium-assistant": "^6.1.0",
     "semver": "^7.1.2",
     "serve-index": "^1.9.1",
     "service-worker-mock": "^1.9.3",