Bump conda-incubator/setup-miniconda from 2 to 3

Bumps [conda-incubator/setup-miniconda](/~https://github.com/conda-incubator/setup-miniconda) from 2 to 3.
- [Release notes](/~https://github.com/conda-incubator/setup-miniconda/releases)
- [Changelog](/~https://github.com/conda-incubator/setup-miniconda/blob/main/CHANGELOG.md)
- [Commits](conda-incubator/setup-miniconda@v2...v3)

---
updated-dependencies:
- dependency-name: conda-incubator/setup-miniconda
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/conda-feedstock-check.yml

@@ -40,7 +40,7 @@ jobs:
       - uses: actions/checkout@v4
       - name: Strip python version
         run: cat environment.yml | egrep -vw python > environment-nopython.yml
-      - uses: conda-incubator/setup-miniconda@v2
+      - uses: conda-incubator/setup-miniconda@v3
         with:
           auto-update-conda: true
           activate-environment: xsar

.github/workflows/install-test.yml

@@ -52,7 +52,7 @@ jobs:
       # cache conda from https://dev.to/epassaro/caching-anaconda-environments-in-github-actions-5hde
       # and /~https://github.com/conda-incubator/setup-miniconda#caching
       - name: Setup Mambaforge
-        uses: conda-incubator/setup-miniconda@v2
+        uses: conda-incubator/setup-miniconda@v3
         with:
           miniforge-variant: Mambaforge
           miniforge-version: latest