Add conda-lock library to generate full conda-lock files for default template

related to #973 and #971, we at nf-core have `environment.yml`s with pip dependencies, e.g. [environment.yml](https://github.com/mashehu/drugresponseeval/blob/a09ea0c1ee03728b61293b2e73ddf7ad3db28ca4/modules/local/collect_results/environment.yml) and currently the micromamba templates don't include non-conda dependencies, see https://github.com/mamba-org/mamba/pull/3623. Would it be possible to export the lock file with `conda-lock lock -f /tmp/environment.yml` instead of the current `micromamba env export --name base --explicit`?