Specify exports for package

Author: screendriver

package.json

@@ -3,7 +3,10 @@
     "type": "module",
     "version": "2.3.18",
     "description": "A CLI tool that deletes old GitLab pipelines",
-    "main": "target/src/index.js",
+    "exports": {
+        "types": "./target/src/index.d.ts",
+        "default": "./target/src/index.js"
+    },
     "engines": {
         "node": ">=16"
     },