Remove unused python-dotenv dependency from clp-py-utils

[coderabbitai]

Context

After PR #1357, the dotenv_values import is no longer used in components/clp-py-utils/clp_py_utils/clp_config.py.

Tasks

• Remove the unused import: from dotenv import dotenv_values from components/clp-py-utils/clp_py_utils/clp_config.py (line 6)
• Remove the python-dotenv dependency from components/clp-py-utils/pyproject.toml

Notes

• The python-dotenv dependency should remain in tools/deployment/presto-clp/scripts/requirements.txt as it's still used by tools/deployment/presto-clp/scripts/init.py

References

• PR: feat(clp-package): Replace package execution container with clp-package; Change default taskfile task to docker-images:package. #1357
• Comment: feat(clp-package): Replace package execution container with clp-package; Change default taskfile task to docker-images:package. #1357 (comment)
• Requested by: @junhaoliao