chore: bump pdf-elements to 1.1.6

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

package.json

@@ -1,7 +1,7 @@
 {
   "name": "@libresign/pdf-elements",
   "description": "PDF viewer with draggable and resizable element overlays for Vue 3",
-  "version": "1.1.5",
+  "version": "1.1.6",
   "author": "LibreCode <contact@librecode.coop>",
   "private": false,
   "main": "dist/index.mjs",
@@ -40,6 +40,8 @@
     "build:report": "vite build --mode report",
     "build:demo": "vite build --mode demo",
     "preview:demo": "vite preview --outDir dist-demo",
+    "validate:dist": "node scripts/validate-pdfjs-dist.mjs",
+    "prepack": "npm run build && npm run validate:dist",
     "test": "vitest run",
     "test:watch": "vitest",
     "lint": "eslint . --ext .vue,.ts,.js --max-warnings=0",