Bump kotest from 6.0.7 to 6.1.1

Bumps `kotest` from 6.0.7 to 6.1.1.

Updates `io.kotest:kotest-assertions-core` from 6.0.7 to 6.1.1
- [Release notes](https://github.com/kotest/kotest/releases)
- [Commits](kotest/kotest@6.0.7...6.1.1)

Updates `io.kotest:kotest-assertions-json` from 6.0.7 to 6.1.1
- [Release notes](https://github.com/kotest/kotest/releases)
- [Commits](kotest/kotest@6.0.7...6.1.1)

---
updated-dependencies:
- dependency-name: io.kotest:kotest-assertions-core
  dependency-version: 6.1.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.kotest:kotest-assertions-json
  dependency-version: 6.1.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -14,7 +14,7 @@ openapi-generator = "7.18.0"
 awaitility = "4.3.0"
 collections-immutable = "0.4.0"
 coroutines = "1.10.2"
-kotest = "6.0.7"
+kotest = "6.1.1"
 kotlinx-io = "0.8.2"
 ktor = "3.2.3"
 logging = "7.0.14"