Update show_settings snapshot for special-conda-env-names preview feature

https://claude.ai/code/session_01WEmrJ4kZAX7yRLw5GJyken

Author: zanieb

crates/uv/tests/it/show_settings.rs

@@ -7930,6 +7930,7 @@ fn preview_features() {
                 MetadataJson,
                 GcsEndpoint,
                 AdjustUlimit,
+                SpecialCondaEnvNames,
             ],
         },
         python_preference: Managed,
@@ -8188,6 +8189,7 @@ fn preview_features() {
                 MetadataJson,
                 GcsEndpoint,
                 AdjustUlimit,
+                SpecialCondaEnvNames,
             ],
         },
         python_preference: Managed,