refactor(KNOWN_SCHEMES): replace set comprehension for list comprehension

Set is an unordered structure, so every call the order changes.
Because the unordered behavior we can't use `file_regression`
to test the command output.

Author: marcosdotme

commitizen/version_schemes.py

@@ -401,7 +401,7 @@ def __str__(self) -> str:
 SCHEMES_ENTRYPOINT = "commitizen.scheme"
 """Schemes entrypoints group"""
 
-KNOWN_SCHEMES = {ep.name for ep in metadata.entry_points(group=SCHEMES_ENTRYPOINT)}
+KNOWN_SCHEMES = [ep.name for ep in metadata.entry_points(group=SCHEMES_ENTRYPOINT)]
 """All known registered version schemes"""