Implement DMLQueryBuilder::upsertWithReturningPks() method

[Tigrov]

Related PR

• Add upsertWithReturningPks() method db#973

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

[codecov]

Codecov Report

Attention: Patch coverage is 96.96970% with 1 line in your changes missing coverage. Please review.

Project coverage is 98.22%. Comparing base (3a16951) to head (b8d0bbb).

Files with missing lines	Patch %	Lines
src/Command.php	92.85%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #356      +/-   ##
============================================
- Coverage     98.51%   98.22%   -0.29%     
  Complexity      338      338              
============================================
  Files            20       20              
  Lines          1075     1070       -5     
============================================
- Hits           1059     1051       -8     
- Misses           16       19       +3     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.