Bump java-jwt from 3.12.0 to 3.12.1

Bumps [java-jwt](https://github.com/auth0/java-jwt) from 3.12.0 to 3.12.1.
- [Release notes](https://github.com/auth0/java-jwt/releases)
- [Changelog](https://github.com/auth0/java-jwt/blob/master/CHANGELOG.md)
- [Commits](auth0/java-jwt@3.12.0...3.12.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

build.gradle

@@ -75,7 +75,7 @@ dependencies {
     compile 'com.squareup.okhttp:okhttp:2.7.5'
     compile 'com.squareup.okhttp:logging-interceptor:2.7.5'
     compile 'com.google.code.gson:gson:2.8.6'
-    compile ('com.auth0:java-jwt:3.12.0'){
+    compile ('com.auth0:java-jwt:3.12.1'){
         exclude group: 'com.fasterxml.jackson.core', module: 'jackson-databind'
     }
     compile 'com.fasterxml.jackson.core:jackson-databind:2.12.1'