fix: gateway flaky test

[saurav-malani]

Description

While testing all the endpoints in gateway we are running StartWebHandler(ctx) in a separate go routine. And, then we are hitting all the endpoints subsequently. So, there is a possibility that we start hitting endpoints before all the endpoints are registered in the router. So, added a second of delay between calling StartWebHandler and starting to hit endpoints.

Notion Ticket

< Replace with Notion Link >

Security

• The code changed/added as part of this pull request won't create any security issues with how the software is being used.

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -0.06 ⚠️

Comparison is base (2b8e34a) 68.50% compared to head (9c35628) 68.44%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3356      +/-   ##
==========================================
- Coverage   68.50%   68.44%   -0.06%     
==========================================
  Files         329      329              
  Lines       52709    52709              
==========================================
- Hits        36106    36076      -30     
- Misses      14265    14298      +33     
+ Partials     2338     2335       -3     

see 7 files with indirect coverage changes

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