Bump mockitoVersion from 5.3.1 to 5.4.0

Bumps `mockitoVersion` from 5.3.1 to 5.4.0.

Updates `org.mockito:mockito-core` from 5.3.1 to 5.4.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.3.1...v5.4.0)

Updates `org.mockito:mockito-junit-jupiter` from 5.3.1 to 5.4.0
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](mockito/mockito@v5.3.1...v5.4.0)

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

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

Author: dependabot[bot]

build.gradle.kts

@@ -50,7 +50,7 @@ dependencies {
     testImplementation("io.quarkus:quarkus-junit5-mockito")
     testImplementation("io.rest-assured:rest-assured")
     testImplementation("io.quarkus:quarkus-test-security")
-    val mockitoVersion = "5.3.1"
+    val mockitoVersion = "5.4.0"
     testImplementation("org.mockito:mockito-core:$mockitoVersion")
     testImplementation("org.mockito:mockito-junit-jupiter:$mockitoVersion")
     testImplementation("org.mockito.kotlin:mockito-kotlin:5.1.0")