build(deps-dev): bump @types/node from 22.19.3 to 25.2.3 in /backend (#191)

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 22.19.3 to 25.2.3.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

---
updated-dependencies:
- dependency-name: "@types/node"
  dependency-version: 25.2.3
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

backend/package-lock.json

@@ -27,7 +27,7 @@
       },
       "devDependencies": {
         "@biomejs/biome": "^2.3.15",
-        "@types/node": "^22.7.4",
+        "@types/node": "^25.2.3",
         "@types/nodemailer": "^6.4.21",
         "@types/supertest": "^6.0.2",
         "@vitest/coverage-v8": "^4.0.18",
@@ -3471,12 +3471,12 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "22.19.3",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.19.3.tgz",
-      "integrity": "sha512-1N9SBnWYOJTrNZCdh/yJE+t910Y128BoyY+zBLWhL3r0TYzlTmFdXrPwHL9DyFZmlEXNQQolTZh3KHV31QDhyA==",
+      "version": "25.2.3",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.2.3.tgz",
+      "integrity": "sha512-m0jEgYlYz+mDJZ2+F4v8D1AyQb+QzsNqRuI7xg1VQX/KlKS0qT9r1Mo16yo5F/MtifXFgaofIFsdFMox2SxIbQ==",
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~7.16.0"
       }
     },
     "node_modules/@types/nodemailer": {
@@ -6659,9 +6659,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
-      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "version": "7.16.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz",
+      "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==",
       "license": "MIT"
     },
     "node_modules/vary": {

backend/package.json

@@ -36,7 +36,7 @@
   },
   "devDependencies": {
     "@biomejs/biome": "^2.3.15",
-    "@types/node": "^22.7.4",
+    "@types/node": "^25.2.3",
     "@types/nodemailer": "^6.4.21",
     "@types/supertest": "^6.0.2",
     "@vitest/coverage-v8": "^4.0.18",