Allow to sanitize spec file content before parsing with RPM (#519)

Allow to sanitize spec file content before parsing with RPM

Reviewed-by: gemini-code-assist[bot]
Reviewed-by: Nikola Forró
Reviewed-by: Laura Barcziová

Author: centosinfra-prod-github-app[bot]

_typos.toml

@@ -4,4 +4,4 @@ extend-ignore-re = [
 ]
 
 # Allow these as valid words
-extend-words = { SOURCEN = "SOURCEN" }
+extend-words = { SOURCEN = "SOURCEN", sover = "sover" }