feat: implement snowpipe destination config validation

[shekhar-rudder]

Description

Context

Implementation

• Made changes in StepsToValidate method to return relevant steps for Snowpipe destination
• Moved DestinationValidationResponse struct from internal/model package to validations package so that it can be accessed in snowpipestreaming package
• Added a validator field in snowpipe's Manager struct which is responsible for validating the destination config
• Made changes in Upload function to call the validator whenever there is an authorization error. And if the response is not successful, the error is being returned.

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

All modified and coverable lines are covered by tests ✅

Project coverage is 74.91%. Comparing base (6e69bd9) to head (029cccb).
Report is 4 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5472   +/-   ##
=======================================
  Coverage   74.91%   74.91%           
=======================================
  Files         458      458           
  Lines       63260    63265    +5     
=======================================
+ Hits        47389    47395    +6     
+ Misses      13220    13218    -2     
- Partials     2651     2652    +1     

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