Upgraded MockK to 1.13.13.

Author: ianbrandt

gradle/libs.versions.toml

@@ -17,7 +17,7 @@ kotlinx-dl = "0.5.2"
 ksp = "2.0.20-1.0.25" # Must match Kotlin version above.
 mockito = "5.14.1"
 mockito-kotlin = "2.2.0"
-mockk = "1.13.12"
+mockk = "1.13.13"
 org-json = "20240303"
 slf4j = "2.0.16"
 versions-gradle-plugin = "0.51.0"