Test Command::insertWithReturningPks() with empty values

[Tigrov]

Related PRs:

• Fix DMLQueryBuilder::insertWithReturningPks() db-mssql#287
• Fix Command::insertWithReturningPks() db-oracle#250
• Fix Command::insertWithReturningPks() db-mysql#314

Q	A
Is bugfix?	✔️
New feature?	❌
Breaks BC?	❌
Fixed issues	#792

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (447a0f0) 99.64% compared to head (8f4cea5) 99.64%.

Additional details and impacted files

@@            Coverage Diff            @@
##             master     #791   +/-   ##
=========================================
  Coverage     99.64%   99.64%           
  Complexity     1265     1265           
=========================================
  Files            63       63           
  Lines          3063     3063           
=========================================
  Hits           3052     3052           
  Misses           11       11           

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[what-the-diff]

PR Summary

• Inclusion of New Testing Methods
  Two new tests have been added to ensure the robustness of our codebase. The aim of these tests is to verify how our program handles certain situations while inserting data. The tests will check for instances where we insert empty values and whether the program still executes reliably, even if there's nothing to assign primary keys to. This makes sure our application performs as expected in diverse situations.