Add typo variations of 'exception' (#1998)

diff --git a/codespell_lib/data/dictionary.txt b/codespell_lib/data/dictionary.txt
index 660a71a..01e253e 100644
--- a/codespell_lib/data/dictionary.txt
+++ b/codespell_lib/data/dictionary.txt
@@ -13092,6 +13092,9 @@
 expetimenting->experimenting
 expetiments->experiments
 expeting->expecting
+expetion->exception
+expetional->exceptional
+expetions->exceptions
 expets->expects
 expewriment->experiment
 expewrimental->experimental