chore: Limit published files to dist for node server. (#62)

Author: kinyoklion

packages/sdk/server-node/package.json

@@ -5,6 +5,9 @@
   "type": "commonjs",
   "main": "./dist/src/index.js",
   "types": "./dist/src/index.d.ts",
+  "files": [
+    "/dist"
+  ],
   "keywords": [
     "launchdarkly",
     "analytics",