fix: package.json, yarn.lock & .snyk to reduce vulnerabilities

The following vulnerabilities are fixed with a Snyk patch:
- https://snyk.io/vuln/SNYK-JS-LODASH-567746

package.json

@@ -13,7 +13,9 @@
     "doc:dev": "cd docs && bundle exec jekyll s --drafts",
     "migrate": "NODE_ENV=production sequelize db:migrate",
     "migrate:dev": "sequelize db:migrate",
-    "build:wc": "cd webcomponents; yarn build:lib; cp dist/gancio-events.es.js ../wp-plugin/js/; cp dist/gancio-events.es.js ../assets/; cp dist/gancio-events.es.js ../docs/assets/js/"
+    "build:wc": "cd webcomponents; yarn build:lib; cp dist/gancio-events.es.js ../wp-plugin/js/; cp dist/gancio-events.es.js ../assets/; cp dist/gancio-events.es.js ../docs/assets/js/",
+    "prepare": "yarn run snyk-protect",
+    "snyk-protect": "snyk-protect"
   },
   "files": [
     "server/",
@@ -72,7 +74,8 @@
     "vuetify": "npm:@vuetify/nightly@dev",
     "winston": "^3.7.2",
     "winston-daily-rotate-file": "^4.7.1",
-    "yargs": "^17.5.0"
+    "yargs": "^17.5.0",
+    "@snyk/protect": "latest"
   },
   "devDependencies": {
     "@nuxtjs/vuetify": "^1.12.3",
@@ -109,5 +112,6 @@
   "repository": {
     "type": "git",
     "url": "https://framagit.org/les/gancio"
-  }
+  },
+  "snyk": true
 }