Add coered -> coerced

Ran across this while reviewing some documentation, expected to be able to codespell it.

Author: effigies

codespell_lib/data/dictionary.txt

@@ -13468,6 +13468,7 @@ coelesce->coalesce
 coercable->coercible
 coerceion->coercion
 coercin->coercing, coercion,
+coered->coerced
 coersce->coerce
 coersced->coerced
 coersces->coerces