junit should be a test scoped dependency

[mweirauch]

What happened?

Description

The POM should declare the junit dependency in test scope because it is only required by test sources:

<scope>test</scope>

I haven't checked other logzio appender projects whether they share the same issue.

Expected Result

junit is not exported as a transitive dependency.

Actual Result

junit is exported as a transitive dependency.

How can we reproduce it?

1. mvn dependency:tree

Environment information

Environment

Version: 2.2.0