fix: add repository field for npm provenance

Author: pweiskircher

package.json

@@ -28,5 +28,9 @@
     "test": "vitest run",
     "test:watch": "vitest"
   },
-  "homepage": "https://www.nutrient.io/guides/web/forms/fill-form-fields/dynamic-font-loading/"
+  "homepage": "https://www.nutrient.io/guides/web/forms/fill-form-fields/dynamic-font-loading/",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/PSPDFKit/nutrient-font-tool.git"
+  }
 }