Use conda-incubator/setup-miniconda@v2 action

[fcollonval]

Switch to https://github.com/conda-incubator/setup-miniconda/releases/tag/v2.0.0 to correct GitHub deprecation warnings

[github-actions[bot]]

:point_left: Launch a binder notebook on the branch mamba-org/gator/fcollonval-patch-1

[coveralls]

Pull Request Test Coverage Report for Build 357723681

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 69.731%

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Totals
Change from base Build 357618725:	0.0%
Covered Lines:	741
Relevant Lines:	972

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💛 - Coveralls