Check and fix processor version override

[eirnym]

In some cases it doesn't work as expected:

context note from a discussion:

I have followed your suggestion, which partially solved my problem.
In particular:
jsonschema2dataclassPlugins("com.fasterxml.jackson.core:jackson-databind:2.16.1")
has worked as expected.
On the other hand, usage of jsonschema2dataclass("org.jsonschema2pojo:jsonschema2pojo:1.2.1") ends with the same error as before.