Bytecode version of multirelease metadata should be lower or equal to specified version

[Vlatombe]

This fixes warnings observed in the jenkins project using this rule.

[INFO] --- maven-enforcer-plugin:3.0.0-M3:enforce (display-info) @ MY_PROJECT ---
[INFO] Ignoring requireUpperBoundDeps in com.google.guava:guava
[INFO] Adding ignore: module-info
[WARNING] Invalid bytecodeVersion for com.fasterxml.jackson.module:jackson-module-jaxb-annotations:jar:2.12.1:compile : META-INF/versions/11/module-info.class: expected 55, but was 53

The check was exact, it should actually be ensuring the bytecode level is lower or equal to what is specified.

Fixes FasterXML/jackson-modules-base#126