feat: Improved inheritance handling for the Java Generator

[Jessewb786]

feat: Improved inheritance handling for the Java Generator.
test: Test has been extended to cover the new inheritance rule.

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[Jessewb786]

@kennethaasan and @jonaslagoni I see that you guys have worked on this part of the code in the past and I wonder if you could review this PR.
The gist of it is that modelina was not using the 'extends' for intermediate classes and now it does. The change is minor.

[coveralls]

Pull Request Test Coverage Report for Build 12966543629

Details

• 8 of 8 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.001%) to 92.313%

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Totals
Change from base Build 12965250132:	0.001%
Covered Lines:	6006
Relevant Lines:	6337

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💛 - Coveralls

[jonaslagoni]

Think you just need to fix the linting npm run lint:fix

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[asyncapi-bot]

🎉 This PR is included in version 3.12.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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