Node 14 (#12715)

* node 14

* restore package-lock.json from develop

* remove old heroku buildpack

.buildpacks

@@ -1,2 +1 @@
-https://github.com/heroku/heroku-buildpack-nodejs.git
-https://github.com/stomita/heroku-buildpack-phantomjs.git
+https://github.com/heroku/heroku-buildpack-nodejs.git

.github/workflows/test.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
     steps:
     - uses: actions/checkout@v1
       with:
@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
     steps:
     - uses: actions/checkout@v1
       with:
@@ -49,7 +49,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
     steps:
     - uses: actions/checkout@v1
       with:
@@ -71,7 +71,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
     steps:
     - uses: actions/checkout@v1
       with:
@@ -92,7 +92,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
     steps:
     - uses: actions/checkout@v1
       with:
@@ -114,7 +114,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
         mongodb-version: [4.2]
     steps:
     - uses: actions/checkout@v1
@@ -143,7 +143,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
         mongodb-version: [4.2]
     steps:
     - uses: actions/checkout@v1
@@ -172,7 +172,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
         mongodb-version: [4.2]
     steps:
     - uses: actions/checkout@v1
@@ -202,7 +202,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x]
+        node-version: [14.x]
     steps:
     - uses: actions/checkout@v1
       with:

.nvmrc

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

package.json

@@ -79,7 +79,7 @@
   },
   "private": true,
   "engines": {
-    "node": "^12",
+    "node": "^14",
     "npm": "^6"
   },
   "scripts": {