feat: implement object storage delete validations for warehouse destinations

[shekhar-rudder]

Description

With #5428 being merged, this update enhances the validations API for creating/updating destinations by adding a step to verify if RudderStack has object storage delete permissions.

Implementation Details

• This new step is included only if the deletion config is set to true.
• It will be the final part of checking the "Object storage" permissions
• Attempt to delete the uploaded file. If the deletion step fails, an error message will be propagated to the web app, informing the user of the issue.

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

Attention: Patch coverage is 47.05882% with 9 lines in your changes missing coverage. Please review.

Project coverage is 74.82%. Comparing base (71efda1) to head (9af52a3).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
warehouse/validations/validate.go	47.05%	6 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5456      +/-   ##
==========================================
- Coverage   74.84%   74.82%   -0.03%     
==========================================
  Files         440      440              
  Lines       61425    61442      +17     
==========================================
- Hits        45974    45972       -2     
- Misses      12916    12940      +24     
+ Partials     2535     2530       -5     

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