[DOP-18743] Set default jobDescription

[dolfinus]

Change Summary

Set jobDescription in any method which interact with Spark in some way. Examples:

This does not work if Spark action was triggered outside of onETL methods, e.g. user called df.count() or df.toPandas():

It's hard to write tests on this because jobDescription is reset just before method returned some result.

Related issue number

Checklist

• Commit message and PR title is comprehensive
• Keep the change as small as possible
• Unit and integration tests for the changes exist
• Tests pass on CI and coverage does not decrease
• Documentation reflects the changes where applicable
• docs/changelog/next_release/<pull request or issue id>.<change type>.rst file added describing change
  (see CONTRIBUTING.rst for details.)
• My PR is ready to review.

[codecov]

Codecov Report

Attention: Patch coverage is 97.53086% with 4 lines in your changes missing coverage. Please review.

Project coverage is 95.45%. Comparing base (3c25405) to head (e34d9e5).
Report is 57 commits behind head on develop.

Files with missing lines	Patch %	Lines
...etl/connection/db_connection/mongodb/connection.py	77.77%	1 Missing and 1 partial ⚠️
onetl/connection/file_connection/ftp.py	66.66%	1 Missing ⚠️
onetl/file/file_df_reader/file_df_reader.py	91.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #304      +/-   ##
===========================================
+ Coverage    95.36%   95.45%   +0.09%     
===========================================
  Files          225      225              
  Lines         8860     8931      +71     
  Branches      1499     1516      +17     
===========================================
+ Hits          8449     8525      +76     
+ Misses         292      287       -5     
  Partials       119      119              

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