fix: backend/package.json & backend/package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-FASTIFYSESSION-6969137

backend/package-lock.json

@@ -19,7 +19,7 @@
         "@fastify/helmet": "^11.1.1",
         "@fastify/passport": "^2.4.0",
         "@fastify/rate-limit": "^9.0.0",
-        "@fastify/session": "^10.7.0",
+        "@fastify/session": "^10.9.0",
         "@fastify/swagger": "^8.14.0",
         "@fastify/swagger-ui": "^2.1.0",
         "@node-saml/passport-saml": "^4.0.4",
@@ -2458,9 +2458,9 @@
       }
     },
     "node_modules/@fastify/session": {
-      "version": "10.7.0",
-      "resolved": "https://registry.npmjs.org/@fastify/session/-/session-10.7.0.tgz",
-      "integrity": "sha512-ECA75gnyaxcyIukgyO2NGT3XdbLReNl/pTKrrkRfDc6pVqNtdptwwfx9KXrIMOfsO4B3m84eF3wZ9GgnebiZ4w==",
+      "version": "10.9.0",
+      "resolved": "https://registry.npmjs.org/@fastify/session/-/session-10.9.0.tgz",
+      "integrity": "sha512-u/c42RuAaxCeEuRCAwK2+/SfGqKOd0NSyRzEvDwFBWySQoKUZQyb9OmmJSWJBbOP1OfaU2OsDrjbPbghE1l/YQ==",
       "dependencies": {
         "fastify-plugin": "^4.0.0",
         "safe-stable-stringify": "^2.3.1"

backend/package.json

@@ -80,7 +80,7 @@
     "@fastify/helmet": "^11.1.1",
     "@fastify/passport": "^2.4.0",
     "@fastify/rate-limit": "^9.0.0",
-    "@fastify/session": "^10.7.0",
+    "@fastify/session": "^10.9.0",
     "@fastify/swagger": "^8.14.0",
     "@fastify/swagger-ui": "^2.1.0",
     "@node-saml/passport-saml": "^4.0.4",