Github Actions failure: macos " No installed conda 'base' environment found at !"

[mathieuboudreau]

Checklist

• I've given this PR a concise, self-descriptive, and meaningful title
• I've linked relevant issues in the PR body
• I've applied the relevant labels to this PR
• I've added relevant tests for my contribution
• I've updated the documentation and/or added correct docstrings
• I've assigned a reviewer
• I've consulted ADS's internal developer documentation to ensure my contribution is in line with any relevant design decisions

Description

We've recently started getting this failure on the macos CI:

Error: No installed conda 'base' environment found at !If you are using this action in a self-hosted runner that already provides its own Miniconda installation, please specify its location with a `CONDA` environment variable. If you want us to download and install Miniconda or Miniforge for you, add `miniconda-version: "latest"` or `miniforge-version: "latest"`, respectively, to the parameters for this action.

https://github.com/axondeepseg/axondeepseg/actions/runs/8918691441/job/24493688432

Linked issues

[mathieuboudreau]

Here's the cause that was reported: conda-incubator/setup-miniconda#344

[mathieuboudreau]

Seems like forcing the mac runner to version 12 instead of latest did the trick (not sure why 13 didn't). This is a temporary fix until they resolve it on the conda-incubator/setup-miniconda#344 side

[mathieuboudreau]

In terms of the required checks, the only options available were macos-latest or macos-13, so I disabled the macos matrix test as a required check for now; we'll need to reinstate it when we can set it to latest again

[coveralls]

Pull Request Test Coverage Report for Build 8920573218

Details

• 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 88.982%

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Totals
Change from base Build 8738986202:	0.0%
Covered Lines:	1163
Relevant Lines:	1307

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💛 - Coveralls

[Stoyan-I-A]

Approving for now. We'll have to investigate how to add back the latest os in the future.