Replace print() statements with logger.info() in pipeline tasks (fixe…

[abhijeetnardele24-hash]

Summary

Replaced print() statements with proper logging using logger.info() as requested in #467.

Changes

• Replaced 5 print() statements in cosipy/pipeline/task/task.py with logger.info() calls
• Affected functions: cosi_bindata() and cosi_threemlfit()
• Logging was already imported and configured in the file

Fixes #467

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.51%. Comparing base (99bed81) to head (05069f8).

Files with missing lines	Coverage Δ
cosipy/data_io/UnBinnedData.py	92.83% <ø> (-0.03%)	⬇️

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[israelmcmc]

Thanks @abhijeetnardele24-hash

• The print() statemente in cosi_threemlfit are actually OK since this function is meant to be a commandline executable and the print() output will go to stdout. Can you please revert those?
• Did you see where the "adding XXX ..." from combined_unbinned_data are coming from? I didn't see those in your changes.
• @GallegoSav can you please confirm that these changes are what you meant to do with issue Remind me to remove the check for old file format for DC4 #428 ?