yangxingyu588

`abra2` fails to be built on `linux`, this is the [error details](https://github.com/bioconda/bioconda-recipes/blob/master/recipes/abra2/build_failure.linux-64.yaml), including `linux-aarch64`.

why is `python >= 3.7` skipped in [meta.yaml](https://github.com/bioconda/bioconda-recipes/blob/d0879b8111b6ccdb343fb027bddca6a064febe67/recipes/advntr/meta.yaml#L8) during build?