Update Node.js version to ^20 across the repository

Author: neelkanth-kaushik

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [18]
+        node-version: [20]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
@@ -39,7 +39,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [18]
+        node-version: [20]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3

packages/node/package.json

@@ -17,7 +17,7 @@
     "!*.tsbuildinfo"
   ],
   "engines": {
-    "node": ">=18"
+    "node": "^20"
   },
   "scripts": {
     ".": "yarn run -T turbo run --filter=@segment/analytics-node",