Added test for multiple sinks, multiple triggers

[Cali0707]

Fixes #7241

Proposed Changes

• Add a test with multiple triggers and multiple sinks

[Cali0707]

/cc @creydr @matzew @pierDipi

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (a0e4c18) 76.86% compared to head (89dcbe7) 76.86%.
Report is 18 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7350   +/-   ##
=======================================
  Coverage   76.86%   76.86%           
=======================================
  Files         252      252           
  Lines       13727    13727           
=======================================
  Hits        10551    10551           
  Misses       2650     2650           
  Partials      526      526           

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[Cali0707]

/cc @Leo6Leo

[pierDipi]

/lgtm
/approve

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Cali0707, pierDipi

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