Upgrade Junit to fix issue #433

Upgrading Junit because 4.13 has known vulnerabilities

build.gradle

@@ -13,7 +13,7 @@ buildscript {
     ext.databinding_version = '7.1.3'
     ext.viewbinding_version = '7.1.3'
 
-    ext.junit_version = '4.13'
+    ext.junit_version = '4.13.2'
     ext.mockito_version = '3.3.3'
 
     repositories {