[DOP-16999] - Add jdbc_dialect logging

[maxim-lixakov]

Change Summary

Add logging info about using jdbc dialect in jdbc connections in get_df_schema method:

2024-08-16 16:16:49,388 [INFO    ] MainThread: |Postgres| Detected dialect: 'org.apache.spark.sql.jdbc.PostgresDialect'

If no dialect is defined (in case like Clickhouse):

2024-08-16 15:47:57,800 [INFO    ] MainThread: |Clickhouse| Detected dialect: 'org.apache.spark.sql.jdbc.NoopDialect'

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

All modified and coverable lines are covered by tests ✅

Project coverage is 95.40%. Comparing base (1382600) to head (7d0f3a0).
Report is 62 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #305      +/-   ##
===========================================
+ Coverage    95.24%   95.40%   +0.16%     
===========================================
  Files          225      225              
  Lines         8931     8940       +9     
  Branches      1516     1516              
===========================================
+ Hits          8506     8529      +23     
+ Misses         303      290      -13     
+ Partials       122      121       -1     

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[dolfinus]

Dialect should be logged in every place it is used for constructing JDBC dataframe:

• JDBCConnection.get_df_schema
• JDBCConnection.sql
• JDBCMixin.fetch
• JDBCMixin.execute