Enhance automatic dag generation

[TejasMorbagal]

[Description of PR]

Enchanced automatic Airflow DAG generation, specifically for Kubernetes pod operator with the following:

• Added --secret-name option to inject Kubernetes secrets as environment variables into every generated pod (repeatable).
• Added resource requests and limits support via four new CLI options, (--cpu-request, --memory-request, --cpu-limit, --memory-limit).
• Added volume support via two new model types (PvcMount, ConfigMapMount) and two new repeatable CLI options:
  --pvc-mount name:claim_name:mount_path mounts a PersistentVolumeClaim and --config-map-mount name:config_map_name:mount_path[:sub_path] mounts a ConfigMap, with optional sub_path for single-file mounts.

Checklist (strike out non-applicable):

• Changes documented in CHANGES.md
  * [ ] Related issue exists and is referred to in the PR description and CHANGES.md
• Added docstrings and API docs for any new/modified user-facing classes and functions
• Changes/features documented in docs/*
• Unit-tests adapted/added for changes/features
• Test coverage remains or increases (target 100%)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[forman]

Looks all good to me! Please be reminded that we generate CLI docs using the gen-cli-docs tool for all Eozilla CLIs.

[TejasMorbagal]

Looks all good to me! Please be reminded that we generate CLI docs using the gen-cli-docs tool for all Eozilla CLIs.

Thanks. I will use it the next time to update the CLI docs.