[REQ] Java client: Indicate min version of maven and gradle in generated README.md file

[sebastien-rosset]

Is your feature request related to a problem? Please describe.

For the Java client, the generated README (from README.mustache) file has an ambiguous statement about the gradle and maven dependencies. It does not specify the min versions, but in reality there are min version dependencies.

Building the API client library requires:
....
2. Maven/Gradle

Describe the solution you'd like

I suggest generating a README file that has the actual min gradle and maven versions, such as:

2. Maven 3.8.3
3. Gradle 7.2

Describe alternatives you've considered

Additional context