Add spelling correction for denila and variant.

Author: cfi-gb

codespell_lib/data/dictionary.txt

@@ -19846,6 +19846,8 @@ demostration->demonstration
 demudulator->demodulator
 denegrating->denigrating
 denigratin->denigrating, denigration,
+denila->denial
+denilas->denials
 denine->define, adenine, dentine,
 denined->denied, defined,
 denines->defines, denies,