fix(tests): update field options test to match actual implementation

- Change expected maxResults parameter from 50 to 10000 to match the default
- Fix server API path to use correct /rest/api/2/customFields/{id}/options format

Author: pibylick

tests/unit/test_field_options.py

@@ -296,12 +296,12 @@ def test_api_version_selection(self):
         FieldsMixin.get_field_options(cloud_mixin, "customfield_10001")
         cloud_mixin.jira.get.assert_called_with(
             path="/rest/api/3/field/customfield_10001/option",
-            params={"startAt": 0, "maxResults": 50}
+            params={"startAt": 0, "maxResults": 10000}
         )
 
         # Test Server API version (2)  
         FieldsMixin.get_field_options(server_mixin, "customfield_10001")
         server_mixin.jira.get.assert_called_with(
-            path="/rest/api/2/field/customfield_10001/option", 
-            params={"startAt": 0, "maxResults": 50}
+            path="/rest/api/2/customFields/10001/options", 
+            params={"startAt": 0, "maxResults": 10000}
         )