Fixing build failure
Execution default of goal de.saumya.mojo:gem-maven-plugin:2.0.0-1:exec failed: Unable to load the mojo 'exec' in the plugin 'de.saumya.mojo:gem-maven-plugin:2.0.0-1' due to an API incompatibility: org.codehaus.plexus.component.repository.exception.ComponentLookupException: de/saumya/mojo/gem/ExecMojo has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
