fix: Use cache for endpoints correctly

Author: skupriienko

mailjet_rest/client.py

@@ -713,7 +713,7 @@ def __getattr__(self, name: str) -> Endpoint:
         if name not in self._endpoint_cache:
             self._endpoint_cache[name] = Endpoint(self, name)
 
-        return Endpoint(self, name)
+        return self._endpoint_cache[name]
 
     def __repr__(self) -> str:
         """OWASP Secrets Management: Redact sensitive information from object representation.

mailjet_rest/utils/version.py

@@ -35,7 +35,7 @@ def clean_version(version_str: str) -> tuple[int, ...]:
         version_part = match.group(1)
         return tuple(map(int, version_part.split(".")))
 
-    return 0, 0, 0  # type: ignore[unreachable]
+    return 0, 0, 0
 
 
 # VERSION is a tuple of integers (1, 3, 2).