Update dependency org.junit:junit-bom to v5.14.3 (#93)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 java = "25"
-junit = "5.12.2"
+junit = "5.14.3"
 mockito = "5.18.0"
 reactor = "2025.0.3"