Fix 'gitlab_scheme'-related test failures #101

Reference: #101

Signed-off-by: John M. Horan <johnmhoran@gmail.com>

Author: johnmhoran

src/univers/version_range.py

@@ -1244,5 +1244,5 @@ def build_range_from_github_advisory_constraint(scheme: str, string: str):
     "nuget": "nuget",
     "pypi": "pypi",
     "packagist": "composer",
-    "conan1": "conan1",
+    "conan": "conan1",
 }