chore(deps): bump mime and @types/mime in /api.planx.uk

Bumps [mime](https://github.com/broofa/mime) and [@types/mime](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/mime). These dependencies needed to be updated together.

Updates `mime` from 3.0.0 to 4.0.1
- [Changelog](https://github.com/broofa/mime/blob/main/CHANGELOG.md)
- [Commits](broofa/mime@v3.0.0...v4.0.1)

Updates `@types/mime` from 3.0.4 to 4.0.0
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/mime)

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

Signed-off-by: dependabot[bot] <[email protected]>

api.planx.uk/package.json

@@ -34,7 +34,7 @@
     "jsondiffpatch": "^0.5.0",
     "jsonwebtoken": "^9.0.2",
     "lodash": "^4.17.21",
-    "mime": "^3.0.0",
+    "mime": "^4.0.1",
     "multer": "^1.4.5-lts.1",
     "nanoid": "^3.3.7",
     "notifications-node-client": "^8.0.0",
@@ -83,7 +83,7 @@
     "@types/jsdom": "^21.1.6",
     "@types/jsonwebtoken": "^9.0.5",
     "@types/lodash": "^4.17.0",
-    "@types/mime": "^3.0.4",
+    "@types/mime": "^4.0.0",
     "@types/multer": "^1.4.11",
     "@types/node": "^18.19.13",
     "@types/passport": "^1.0.16",