Update supported node versions, and run the tests on all supported versions

.changeset/honest-paws-bow.md

@@ -0,0 +1,5 @@
+---
+'lighthouse-parade': minor
+---
+
+Support only Node 12 LTS versions or 14

.github/workflows/ci.yml

@@ -5,13 +5,16 @@ on: [push, pull_request]
 jobs:
   test:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [12.x, 14.x]
     steps:
       - name: Checkout
         uses: actions/checkout@v2
-      - name: Use Node.js 12
+      - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: ${{ matrix.node-version }}
       - name: Cache node modules
         uses: actions/cache@v2
         with:
@@ -28,10 +31,10 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
-      - name: Use Node.js 12
+      - name: Use Node.js 14
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
       - name: Cache node modules
         uses: actions/cache@v2
         with:
@@ -48,10 +51,10 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
-      - name: Use Node.js 12
+      - name: Use Node.js 14
         uses: actions/setup-node@v1
         with:
-          node-version: 12
+          node-version: 14
       - name: Cache node modules
         uses: actions/cache@v2
         with:

.nvmrc

@@ -1 +1 @@
-12
+14

README.md

@@ -20,7 +20,7 @@ It is also easy to graph data in this format. The following example is a histogr
 
 ## Installation
 
-(Tested on Node 12)
+(Supports Node 12 and 14)
 
 `npm i -g lighthouse-parade`
 

package.json

@@ -34,7 +34,7 @@
     "simplecrawler": "^1.1.9"
   },
   "engines": {
-    "node": ">12.0.0"
+    "node": "^12.13.0 || ^14.0.0"
   },
   "devDependencies": {
     "@babel/core": "^7.11.6",