Add volumeClaimTemplate for worker in Helm chart

[KHTee]

Problem: The current Helm chart doesn't support additional persistence volume for worker statefulset.

Resolution: Adding in new feature to add extra volumeClaimTemplates for additional persistent volume needed by statefulset.

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[boring-cyborg]

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[eladkal]

@KHTee can you rebase and resolve conflicts?

[KHTee]

@eladkal rebase done

[eladkal]

@eladkal rebase done

Tests are failing :(

[eladkal]

The test added in this PR is failing

=========================== short test summary info ============================
FAILED helm_tests/airflow_core/test_worker.py::TestWorker::test_should_add_extra_volume_claim_templates - subprocess.CalledProcessError: Command '['helm', 'template', 'release-name', '/opt/airflow/chart', '--values', '/tmp/tmp5japxht5', '--kube-version', '1.23.17', '--namespace', 'default', '--show-only', 'templates/workers/worker-deployment.yaml']' returned non-zero exit status 1.
================== 1 failed, 319 passed in 1753.87s (0:29:13) ==================

[KHTee]

The test added in this PR is failing

=========================== short test summary info ============================
FAILED helm_tests/airflow_core/test_worker.py::TestWorker::test_should_add_extra_volume_claim_templates - subprocess.CalledProcessError: Command '['helm', 'template', 'release-name', '/opt/airflow/chart', '--values', '/tmp/tmp5japxht5', '--kube-version', '1.23.17', '--namespace', 'default', '--show-only', 'templates/workers/worker-deployment.yaml']' returned non-zero exit status 1.
================== 1 failed, 319 passed in 1753.87s (0:29:13) ==================

Yes, give me some time. I'm fixing the test cases.

[KHTee]

@eladkal done fixing the test case

[hussein-awala]

I pushed a commit to simplify the render method and fix the unit test. LGTM

[boring-cyborg]

Awesome work, congrats on your first merged pull request! You are invited to check our Issue Tracker for additional contributions.