fix: update-lit to make script executable at the start

Author: anshss

package.json

@@ -5,7 +5,7 @@
   "main": "index.js",
   "scripts": {
     "test-lit": "nx run-many --target=test-lit --all --parallel=1 --exclude=pkp-migration-nodejs,sign-and-combine-ecdsa-nodejs,wrapped-keys-nodejs",
-    "update-lit": "nx run-many --target=update-lit --all --parallel"
+    "update-lit": "chmod +x ./scripts/update-lit.sh && nx run-many --target=update-lit --all --parallel"
   },
   "devDependencies": {
     "nx": "19.6.3"