Update instructions to point to using conda-lock file with micromamba

[IAlibay]

In some cases, some folks might not be able to use conda-lock due to the way in which conda is being blocked. In those cases, it is possible to use micromamba instead with the conda-lock.yml file. Additional instructions should be provided for this.

[mikemhenry]

Resolved by https://github.com/OpenFreeEnergy/IndustryBenchmarks2024/pull/86