chore: bump junit5 from 6.1.0 to 6.1.1

Bumps JUnit 5 (jupiter-api, jupiter-engine, vintage-engine) from 6.1.0 to 6.1.1.

Patch release — backwards compatible.

gradle/libs.versions.toml

@@ -10,7 +10,7 @@ androidxTestRunner = "1.7.0"
 androidxTestEspresso = "3.7.0"
 coroutines = "1.11.0"
 junit = "4.13.2"
-junit5 = "6.1.0"
+junit5 = "6.1.1"
 junitPlatform = "6.1.1"
 kotlin = "2.4.0"
 # standalone per KSP 2.0+ guidance — NOT kotlinVersion-kspVersion; easy