Merge pull request #216 from ckb-cell/release/v2.4.2

chore: bump version to v2.4.2

Author: ShookLyngs

package.json

@@ -1,6 +1,6 @@
 {
   "name": "btc-assets-api",
-  "version": "2.4.1",
+  "version": "2.4.2",
   "title": "Bitcoin/RGB++ Assets API",
   "description": "",
   "main": "index.js",