fix: drop support for EOL versions of node (#85)

BREAKING CHANGE: Supported version range of node is now ^12.22.0 || ^14.17.0 || >=16.0.0

.github/workflows/nodejs.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [10.x, 12.x, 14.x, 15.x, 16.x]
+        node-version: [12.x, 14.x, 16.x]
     runs-on: ubuntu-latest
 
     steps:

babel.config.js

@@ -0,0 +1,19 @@
+// eslint-disable-next-line @typescript-eslint/no-var-requires,import/no-extraneous-dependencies
+const semver = require('semver');
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+const pkg = require('./package.json');
+
+const supportedNodeVersion = semver.minVersion(pkg.engines.node).version;
+
+module.exports = {
+  ignore: ['**/__mocks__/**'],
+  presets: [
+    [
+      '@babel/preset-env',
+      {
+        targets: { node: supportedNodeVersion },
+      },
+    ],
+    '@babel/preset-typescript',
+  ],
+};

package.json

@@ -56,6 +56,7 @@
     "prettier": "^2.1.1",
     "rimraf": "^3.0.2",
     "semantic-release": "^17.4.3",
+    "semver": "^7.3.5",
     "typescript": "^4.0.2"
   },
   "peerDependencies": {
@@ -79,7 +80,7 @@
     ]
   },
   "engines": {
-    "node": ">=10"
+    "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
   },
   "resolutions": {
     "semantic-release/@semantic-release/github/fs-extra": "^9.0.0",