Update node versions in GHA.

Author: digisomni

.github/workflows/deploy.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v1
       - uses: actions/setup-node@v1
         with:
-          node-version: 14.x
+          node-version: 16.x
           cache: npm
       - name: Build website
         working-directory: website

.github/workflows/test-deploy.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/checkout@v1
       - uses: actions/setup-node@v1
         with:
-          node-version: 14.x
+          node-version: 16.x
           cache: npm
       - name: Test build
         working-directory: website