feat: Remove support for Node 18 (#212)

BREAKING CHANGE: Removes support for Node 18.

Author: mtrezza

.github/workflows/ci.yml

@@ -11,8 +11,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - name: Node.js 18
-            NODE_VERSION: 18
           - name: Node.js 20
             NODE_VERSION: 20
           - name: Node.js 22

package.json

@@ -65,7 +65,7 @@
     }
   },
   "engines": {
-    "node": ">=18"
+    "node": "20 || 22 || 24"
   },
   "license": "MIT"
 }