Change name of ObjectMapperConfigurer to prevent conflict with graphq… …l-java-tools fix graphql-java-kickstart#234
Fix release plugin configuration
[Gradle Release Plugin] - creating tag: 'v8.0.0'.
[Gradle Release Plugin] - creating tag: 'v7.5.0'.
[Gradle Release Plugin] - creating tag: 'v7.4.1'.
[Gradle Release Plugin] - creating tag: 'v7.4.0'.
[Gradle Release Plugin] - creating tag: 'v7.3.3'.
[Gradle Release Plugin] - creating tag: 'v7.3.2'.
[Gradle Release Plugin] - creating tag: 'v7.3.1'.
[Gradle Release Plugin] - creating tag: 'v7.3.0'.