Maintenance: Update dependency overcommit to v0.66.0

Gemfile.lock

@@ -465,7 +465,7 @@ GEM
     openssl-signature_algorithm (1.3.0)
       openssl (> 2.0)
     ostruct (0.6.1)
-    overcommit (0.65.0)
+    overcommit (0.66.0)
       childprocess (>= 0.6.3, < 6)
       iniparse (~> 1.4)
       rexml (>= 3.3.9)