Add semgrep ignores for false positives

[instinct-vfx]

[codecov[bot]]

Codecov Report

:x: Patch coverage is 0% with 1 line in your changes missing coverage. Please review. :white_check_mark: Project coverage is 60.07%. Comparing base (96cd33c) to head (db7d9d0).

Files with missing lines	Patch %	Lines
src/rez/cli/release.py	0.00%	1 Missing :warning:

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2028   +/-   ##
=======================================
  Coverage   60.07%   60.07%           
=======================================
  Files         163      163           
  Lines       20185    20185           
  Branches     3510     3510           
=======================================
  Hits        12126    12126           
  Misses       7241     7241           
  Partials      818      818           

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