Chore(deps): Bump org.mockito:mockito-junit-jupiter in /backend (#149)

Bumps [org.mockito:mockito-junit-jupiter](https://github.com/mockito/mockito) from 5.10.0 to 5.11.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.10.0...v5.11.0)

---
updated-dependencies:
- dependency-name: org.mockito:mockito-junit-jupiter
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

backend/gradle/libs.versions.toml

@@ -12,7 +12,7 @@ archunit-junit5 = "com.tngtech.archunit:archunit-junit5:1.2.1"
 flyway-core = { module = "org.flywaydb:flyway-core", version.ref = "flyway" }
 flyway-postgres = { module = "org.flywaydb:flyway-database-postgresql", version.ref = "flyway" }
 lombok = { module = "org.projectlombok:lombok" }
-mockito-junit-jupiter = "org.mockito:mockito-junit-jupiter:5.10.0"
+mockito-junit-jupiter = "org.mockito:mockito-junit-jupiter:5.11.0"
 postgresql = "org.postgresql:postgresql:42.7.2"
 spring-boot-devtools = { module = "org.springframework.boot:spring-boot-devtools" }
 spring-boot-starter-actuator = { module = "org.springframework.boot:spring-boot-starter-actuator" }