fix: resources/server/src/landingpage/package.json & resources/server…

…/src/landingpage/yarn.lock to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-POSTCSS-5926692

requirements.txt

@@ -4,3 +4,4 @@ nose2
 psycopg2
 numpy
 pyyaml
+numpy>=1.22.0rc1 # not directly required, pinned by Snyk to avoid a vulnerability

resources/server/src/landingpage/package.json

@@ -11,7 +11,7 @@
     "leaflet": "^1.9.3",
     "leaflet.wms": "^0.2.0",
     "reproject": "^1.2.7",
-    "vue": "^2.6.14",
+    "vue": "^3.5.12",
     "vue-router": "^3.6.5",
     "vue2-leaflet": "^2.7.1",
     "vuetify": "^2.6.12",
@@ -22,10 +22,10 @@
     "@vue/cli-plugin-babel": "^5.0.8",
     "@vue/cli-plugin-eslint": "^5.0.8",
     "@vue/cli-service": "^5.0.8",
-    "@babel/eslint-parser": "^7.19.1",
-    "eslint": "^8.29.0",
-    "eslint-plugin-vue": "^9.8.0",
-    "sass": "~1.56.1",
+    "@babel/eslint-parser": "^7.25.9",
+    "eslint": "^9.15.0",
+    "eslint-plugin-vue": "^9.29.1",
+    "sass": "~1.80.4",
     "sass-loader": "^13.2.0",
     "vue-cli-plugin-vuetify": "~2.5.8",
     "vue-template-compiler": "^2.7.16",