[SendGrid] - fix linting issue

[joe-ayoub-segment]

Fixing linting issue for SendGrid sendEmail action

Testing

Tested locally

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 78.47%. Comparing base (a0232f6) to head (4af1c1c).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...tions/src/destinations/sendgrid/sendEmail/utils.ts	75.00%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2672   +/-   ##
=======================================
  Coverage   78.46%   78.47%           
=======================================
  Files        1032     1032           
  Lines       18584    18590    +6     
  Branches     3514     3521    +7     
=======================================
+ Hits        14582    14588    +6     
  Misses       2825     2825           
  Partials     1177     1177           

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