chore: suppress deprecation warnings in tests for deprecated console API

[gnodet]

Summary

• Add @SuppressWarnings("deprecation") to 3 test classes that intentionally use the deprecated org.jline.console API (replaced by org.jline.shell in 4.0)
• Affected files: SystemRegistryImplTest, Console example, PicocliCommandRegistryTest
• The new org.jline.shell API already has its own test coverage (ArgumentDescriptionTest, CommandDescriptionTest, CommandLineTest, ShellBuilderTest)

Test plan

• CI build should show no deprecation warnings from these files
• Existing tests pass unchanged

[coderabbitai]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 2e9740f2-2e69-4533-bf3b-bf2be15c3aa9

📥 Commits

Reviewing files that changed from the base of the PR and between 97baf7b and fb8f0e2.

📒 Files selected for processing (3)

• console/src/test/java/org/jline/console/impl/SystemRegistryImplTest.java
• console/src/test/java/org/jline/example/Console.java
• picocli/src/test/java/org/jline/picocli/PicocliCommandRegistryTest.java

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/suppress-deprecation-warnings

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[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