Make EventType Autocreate Async

[Cali0707]

Fixes #7098

Proposed Changes

• Make the eventtype autocreate function async

EventType Autocreate is now a non blocking operation

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Cali0707

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[Cali0707]

/cc @pierDipi @matzew @dsimansk @Leo6Leo

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 17 lines in your changes are missing coverage. Please review.

Project coverage is 73.99%. Comparing base (79a5488) to head (431a860).
Report is 17 commits behind head on main.

Files	Patch %	Lines
pkg/eventtype/eventtypes.go	69.38%	12 Missing and 3 partials ⚠️
pkg/broker/ingress/ingress_handler.go	0.00%	1 Missing ⚠️
pkg/channel/fanout/fanout_event_handler.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7709      +/-   ##
==========================================
+ Coverage   73.98%   73.99%   +0.01%     
==========================================
  Files         262      262              
  Lines       15178    15178              
==========================================
+ Hits        11229    11231       +2     
+ Misses       3343     3341       -2     
  Partials      606      606              

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[matzew]

/retest

[Cali0707]

/retest

[Cali0707]

/retest

[Leo6Leo]

/lgtm

[Leo6Leo]

/retest