[DOP-21415] Bring the JDBC connection names to the same format

[IlyasDevelopment]

Change Summary

Unified the database field naming convention across all JDBC types to use database_name, except for Oracle, which uses service_name and sid.

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.

[dolfinus]

This may require some changes on UI side

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.42%. Comparing base (651f00c) to head (b29a008).
Report is 75 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #130   +/-   ##
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  Coverage    90.42%   90.42%           
========================================
  Files          157      157           
  Lines         3560     3560           
  Branches       261      261           
========================================
  Hits          3219     3219           
  Misses         277      277           
  Partials        64       64           

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