Tag release version 

Bump version for 9.3.0 

Merge pull request graphql-java-kickstart#255 from IceBlizz6/bugfix/bnd Exclude overlap in dependency jars

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'.