[CIRCT] Upgrade to 1.66.0

[leonardt]

No description provided.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.09%. Comparing base (f08e78c) to head (22e6bbf).

❗ Current head 22e6bbf differs from pull request most recent head 6f48d04. Consider uploading reports for the commit 6f48d04 to get more accurate results

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Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1360   +/-   ##
=======================================
  Coverage   85.09%   85.09%           
=======================================
  Files         169      169           
  Lines       17627    17627           
=======================================
  Hits        15000    15000           
  Misses       2627     2627           

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