build with node 14.x

.github/workflows/ci.yml

@@ -34,7 +34,7 @@ jobs:
         lfs: false
     - uses: actions/setup-node@v1
       with:
-        node-version: 12.x
+        node-version: 14.x
     - name: Install Lighthouse CI
       run: |
         npm install -g @lhci/cli
@@ -71,7 +71,7 @@ jobs:
         lfs: false
     - uses: actions/setup-node@v1
       with:
-        node-version: 12.x
+        node-version: 14.x
     - uses: actions/setup-go@v2
       with:
         go-version: 1.14.x

.nvmrc

@@ -1 +0,0 @@
-lts/*

netlify.toml

@@ -4,6 +4,7 @@
   functions = ".netlify/functions"
 
 [build.environment]
+  NODE_VERSION = "14"
   YARN_VERSION = "1.22.4"
   YARN_FLAGS = "--no-ignore-optional --frozen-lockfile"
   GO_VERSION = "1.14.4"