Update github workflows

Author: localhuman

.github/workflows/build-and-test.yml

@@ -11,7 +11,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions/setup-node@v2-beta
       with:
-        node-version: '10'
+        node-version: '14'
     - run: yarn install --frozen-lockfile
     - run: yarn test:lint
     - run: yarn test:unit

.github/workflows/deploy-gh-pages.yml

@@ -15,7 +15,7 @@ jobs:
     - uses: actions/checkout@v2
     - uses: actions/setup-node@v2-beta
       with:
-        node-version: '10'
+        node-version: '14'
     - run: yarn install --frozen-lockfile
     - run: yarn doc