feat: drops support for node versions older than v14 (the oldest LTS version of node)

BREAKING CHANGE: Drops support for node v10 and v12. v14 is the oldest version supported by node.js/OpenJS. It is also the oldestt version supported by current versions of serverless/serverless-offline and makes it easier to upgrade vulnerable dependencies.

Author: activescott

.github/workflows/build.yml

@@ -20,7 +20,7 @@ jobs:
       - name: "Use Node.js (deliberately not using matrix)"
         uses: actions/setup-node@v1
         with:
-          node-version: v12.x
+          node-version: 14
 
       - name: install dependencies
         run: |
@@ -34,7 +34,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        node: [10, 12, 14]
+        node: [14, 16, 18]
 
     steps:
       - uses: actions/checkout@v3
@@ -94,10 +94,10 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - name: Use Node.js v12.x
+      - name: Use Node.js
         uses: actions/setup-node@v1
         with:
-          node-version: v12.x
+          node-version: 14
 
       - name: build plugin locally
         run: |
@@ -170,10 +170,10 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - name: Use Node.js v12.x
+      - name: Use Node.js
         uses: actions/setup-node@v1
         with:
-          node-version: v12.x
+          node-version: 14
 
       #- name: debug publish_package
       #  uses: actions/bin/debug@master

package.json

@@ -43,7 +43,7 @@
     "husky": "^7.0.0"
   },
   "engines": {
-    "node": ">=10"
+    "node": ">=14"
   },
   "files": [
     "src/error.html",