fix(deps): update dependency org.junit:junit-bom to v5.12.0

gradle/libs.versions.toml

@@ -4,7 +4,7 @@
 # Versions which start with managed- are managed by Micronaut in the sense
 # that they will appear in the Micronaut BOM as <properties>
 #
-managed-junit5 = "5.11.4"
+managed-junit5 = "5.12.0"
 managed-javax-annotation-api = "1.3.2"
 managed-jna = "5.16.0"
 managed-jsr305 = "3.0.2"