Don't update Miniconda if it exists.
Don't update Miniconda if it exists.

MonashBioinformaticsPlatform/bio-ansible,MonashBioinformaticsPlatform/bio-ansible,MonashBioinformaticsPlatform/bio-ansible,MonashBioinformaticsPlatform/bio-ansible,MonashBioinformaticsPlatform/bio-ansible