build: Fix extensions

Author: unlight

package.json

@@ -6,12 +6,12 @@
   "license": "MIT",
   "type": "module",
   "types": "./index.d.ts",
-  "main": "./cjs/index.js",
-  "module": "./esm/index.mjs",
+  "main": "./cjs/index.cjs",
+  "module": "./esm/index.js",
   "exports": {
     ".": {
-      "import": "./esm/index.mjs",
-      "require": "./cjs/index.js"
+      "import": "./esm/index.js",
+      "require": "./cjs/index.cjs"
     }
   },
   "scripts": {
@@ -48,11 +48,12 @@
     "npm-run-all": "^4.1.5",
     "prettier": "^2.6.1",
     "reflect-metadata": "^0.1.13",
+    "request": "^2.88.2",
     "ts-node": "^10.7.0",
     "tslib": "^2.3.1",
-    "typescript": "^4.6.3",
+    "tsup": "^5.12.7",
+    "typescript": "^4.6.4",
     "watchexec-bin": "^1.0.0",
-    "request": "^2.88.2",
     "xv": "^1.1.1"
   }
 }