explicitely add tslib ref

Author: sebastianMindee

package-lock.json

@@ -63,7 +63,8 @@
     "node-poppler": "^7.2.2",
     "pdf.js-extract": "^0.2.1",
     "sharp": "^0.33.5",
-    "tmp": "^0.2.3"
+    "tmp": "^0.2.3",
+    "tslib": "^2.8.1"
   },
   "keywords": [
     "typescript",