chore: Require Node 18 in sql-lanuage-server.

Author: Artmann

packages/server/package.json

@@ -20,6 +20,9 @@
     "autocompletion"
   ],
   "license": "MIT",
+  "engines": {
+    "node": ">=18.0.0"
+  },
   "scripts": {
     "compile:cli": "esbuild bin/cli.ts --bundle --platform=node --external:pg-native --external:aws-sdk --external:mock-aws-s3 --external:nock --external:ssh2 --external:cpu-features --outfile=dist/cli.js",
     "compile:vscode": "esbuild bin/vscodeExtensionServer.ts --bundle --platform=node --external:pg-native --external:aws-sdk --external:mock-aws-s3 --external:nock --external:ssh2 --external:cpu-features --outfile=dist/vscodeExtensionServer.js",