Mamba environment type fails with "Unknown environment type 'mamba'" in newer mamba versions

Mamba environment type fails with "Unknown environment type 'mamba'" in newer mamba versions: a task in LegoFlow-SWE (Harbor dataset). This makes it impossible to use mamba as the conda solver backend. The problem started with newer versions of mamba (≥1.5, where libmambapy is used) because ASV…

The task

This makes it impossible to use mamba as the conda solver backend. The problem started with newer versions of mamba (≥1.5, where `libmambapy` is used) because ASV previously relied on the `mamba.api` module for mamba integration, and that module was removed upstream. Now that `mamba.api` is gone, ASV cannot discover…

Part of Lego-X/LegoFlow-SWE.