define a version for jackson annotations to match jackson's depend…

[tomliu4uber]

…ency

definition an new version variable that matches fasterxml-jackson's own definition

Description

• define a new variable for jackson.annotations (jackson 2.9.7 uses annotation version 2.9.0)
• use the variable in dependency management for jackson.annotations

Motivation and Context

#948

Testing

recompile the whole project and make sure all unit tests pass

Screenshots (if appropriate)

Types of changes

• [ X] Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)

Checklist

• [X ] I have read the CONTRIBUTING document
• Local run of mvn install succeeds
• [X ] My code follows the code style of this project
• My change requires a change to the Javadoc documentation
• I have updated the Javadoc documentation accordingly
• [ X] I have read the README document
• I have added tests to cover my changes
• All new and existing tests passed
• [X ] A short description of the change has been added to the CHANGELOG
• My change is to implement 1.11 parity feature and I have updated LaunchChangelog

License

• [X ] I confirm that this pull request can be released under the Apache 2 license

[zoewangg]

🚢 Thank you for your contribution!