chore(backport release-1.1): fix(controller): git-push step: pull --rebase before push

[akuitybot]

Automated backport to release-1.1, triggered by a label in #3119.

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[codecov]

Codecov Report

Attention: Patch coverage is 56.17978% with 78 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-1.1@ed2d1a6). Learn more about missing BASE report.
Report is 1 commits behind head on release-1.1.

Files with missing lines	Patch %	Lines
internal/controller/git/work_tree.go	8.51%	40 Missing and 3 partials ⚠️
internal/directives/simple_engine_promote.go	61.22%	18 Missing and 1 partial ⚠️
internal/directives/git_pusher.go	80.59%	11 Missing and 2 partials ⚠️
internal/directives/errors.go	62.50%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@              Coverage Diff               @@
##             release-1.1    #3153   +/-   ##
==============================================
  Coverage               ?   51.17%           
==============================================
  Files                  ?      285           
  Lines                  ?    25619           
  Branches               ?        0           
==============================================
  Hits                   ?    13110           
  Misses                 ?    11812           
  Partials               ?      697           

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