[Java] [JavaJaxRS] Respect readOnly/writeOnly attribute markers

[mickroll]

Fixes #9222

Generate jackson JsonProperty like following:

• readOnly is present in Spec: @JsonProperty(value = "[name]", access = JsonProperty.Access.READ_ONLY)
• writeOnly is present in Spec: @JsonProperty(value = "[name]", access = JsonProperty.Access.WRITE_ONLY)

Edge case: both are present -> Spec is invalid and generator cancels anyway with:

org.openapitools.codegen.SpecValidationException: There were issues with the specification. The option can be disabled via validateSpec (Maven/Gradle) or --skip-validate-spec (CLI).
| Error count: 1, Warning count: 1
Errors:
-attribute components.schemas.Example. writeOnly and readOnly are both present

@nmuesch

PR checklist

• Read the contribution guidelines.
• Pull Request title clearly describes the work in the pull request and Pull Request description provides details about how to validate the work. Missing information here may result in delayed response from the community.
• Run the following to build the project and update samples:

  ./mvnw clean package 
  ./bin/generate-samples.sh
  ./bin/utils/export_docs_generators.sh
  

  Commit all changed files.
  This is important, as CI jobs will verify all generator outputs of your HEAD commit as it would merge with master.
  These must match the expectations made by your contribution.
  You may regenerate an individual generator by passing the relevant config(s) as an argument to the script, for example ./bin/generate-samples.sh bin/configs/java*.
  For Windows users, please run the script in Git BASH.
• File the PR against the correct branch: master, 5.1.x, 6.0.x
• If your PR is targeting a particular programming language, @mention the technical committee members, so they are more likely to review the pull request.

[wing328]

Samples updated via d42cda0

[wing328]

I think this change can target the current master as it's not a breaking changes (more like a fix to me)

I'll create a new PR, cherry-pick your commit and then file a new PR targeting master instead.

[wing328]

Closed via #9276