Update build dependencies

package.json

@@ -10,26 +10,26 @@
     "build": "./node_modules/.bin/encore production"
   },
   "dependencies": {
-    "@fancyapps/fancybox": "^3.5.3",
+    "@fancyapps/fancybox": "^3.5.7",
     "axios": "^0.18.0",
-    "bootstrap-sass": "^3.3.7",
+    "bootstrap-sass": "^3.4.1",
     "bourbon": "^4.3.2",
     "cookieconsent": "^3.1.0",
-    "dayjs": "^1.7.7",
-    "flatpickr": "^4.5.2",
+    "dayjs": "^1.8.12",
+    "flatpickr": "^4.5.7",
     "font-awesome": "^4.7.0",
     "jquery": "^1.12.4",
-    "lazysizes": "^4.1.5",
-    "leaflet": "^1.3.4",
+    "lazysizes": "^4.1.8",
+    "leaflet": "^1.4.0",
     "normalize.css": "^7.0.0",
     "picturefill": "^3.0.3",
     "sass-mq": "^3.3.2",
     "slick-carousel": "^1.8.0",
     "sticky-js": "^1.2.0",
-    "vue": "^2.5.21",
-    "vue-router": "^3.0.2",
+    "vue": "^2.6.10",
+    "vue-router": "^3.0.6",
     "vue-session": "^1.0.0",
-    "vuex": "^3.0.1"
+    "vuex": "^3.1.0"
   },
   "devDependencies": {
     "@symfony/webpack-encore": "^0.19.0",
@@ -39,8 +39,8 @@
     "node-sass": "^4.11.0",
     "postcss-loader": "^2.1.6",
     "sass-loader": "^6.0.7",
-    "vue-loader": "^14.2.3",
-    "vue-template-compiler": "^2.5.21",
+    "vue-loader": "^14.2.4",
+    "vue-template-compiler": "^2.6.10",
     "webpack-notifier": "^1.7.0"
   },
   "browserslist": [