Add timdelta->timedelta

Observed in:
- https://github.com/agateblue/django-dynamic-preferences/pull/204
- https://github.com/jazzband/django-axes/pull/574

codespell_lib/data/dictionary.txt

diff --git a/codespell_lib/data/dictionary.txt b/codespell_lib/data/dictionary.txt
index b8dee9d..0e5bd04 100644
--- a/codespell_lib/data/dictionary.txt
+++ b/codespell_lib/data/dictionary.txt
@@ -29233,6 +29233,7 @@
 tihkn->think
 tihs->this
 tiitle->title
+timdelta->timedelta
 timedlta->timedelta
 timeing->timing
 timemout->timeout