chore: bump up @types/supertest version to v7 (#14546)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
|
[@types/supertest](https://redirect.github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/supertest)
([source](https://redirect.github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/supertest))
| [`^6.0.2` →
`^7.0.0`](https://renovatebot.com/diffs/npm/@types%2fsupertest/6.0.3/7.2.0)
|
![age](https://developer.mend.io/api/mc/badges/age/npm/@types%2fsupertest/7.2.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/@types%2fsupertest/6.0.3/7.2.0?slim=true)
|

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packages/backend/server/package.json

@@ -137,7 +137,7 @@
     "@types/react-dom": "^19.0.2",
     "@types/semver": "^7.5.8",
     "@types/sinon": "^21.0.0",
-    "@types/supertest": "^6.0.2",
+    "@types/supertest": "^7.0.0",
     "ava": "^6.4.0",
     "c8": "^10.1.3",
     "nodemon": "^3.1.14",

yarn.lock

@@ -1022,7 +1022,7 @@ __metadata:
     "@types/react-dom": "npm:^19.0.2"
     "@types/semver": "npm:^7.5.8"
     "@types/sinon": "npm:^21.0.0"
-    "@types/supertest": "npm:^6.0.2"
+    "@types/supertest": "npm:^7.0.0"
     ai: "npm:^5.0.118"
     ava: "npm:^6.4.0"
     bullmq: "npm:^5.40.2"
@@ -17248,13 +17248,13 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/supertest@npm:^6.0.2":
-  version: 6.0.3
-  resolution: "@types/supertest@npm:6.0.3"
+"@types/supertest@npm:^7.0.0":
+  version: 7.2.0
+  resolution: "@types/supertest@npm:7.2.0"
   dependencies:
     "@types/methods": "npm:^1.1.4"
     "@types/superagent": "npm:^8.1.0"
-  checksum: 10/6ec05eb591c97bc856b0e78c12f5bec10545f3a749688f34232d189797a506d971bc95931718eb57b378d8513f6d2d12462383e6d68455fa72df35c19de6e89e
+  checksum: 10/5a322e29b81033e90ac50ab315d49559b21809ee39b5681ab7386819463e30d68e29c63c946023a1c353e7f13fb3f20d64dcb89d3d8a0fff569450501aff786c
   languageName: node
   linkType: hard