Add mutexs -> mutexes

codespell_lib/data/dictionary.txt

diff --git a/codespell_lib/data/dictionary.txt b/codespell_lib/data/dictionary.txt
index 4d0d060..4407739 100644
--- a/codespell_lib/data/dictionary.txt
+++ b/codespell_lib/data/dictionary.txt
@@ -17604,6 +17604,7 @@
 mutch->much
 mutches->matches
 mutecies->mutexes
+mutexs->mutexes
 muti->multi
 muticast->multicast
 mutices->mutexes