Implement python version lookup for resolvo

Signed-off-by: Julien Jerphanion <[email protected]>

Author: jjerphan

libmamba/src/core/transaction.cpp

@@ -100,9 +100,7 @@ namespace mamba
             }
             else if (auto* resolvo_db = std::get_if<solver::resolvo::Database>(&database))
             {
-                // TODO: Implement for resolvo database
-                throw std::runtime_error("Python version lookup not yet implemented for resolvo database"
-                );
+                return resolvo_db->get_python_version();
             }
             return std::nullopt;
         }