Bump mamba-org/setup-micromamba from 2 to 3 in the actions group (#26)

Bumps the actions group with 1 update: [mamba-org/setup-micromamba](https://github.com/mamba-org/setup-micromamba).


Updates `mamba-org/setup-micromamba` from 2 to 3
- [Release notes](https://github.com/mamba-org/setup-micromamba/releases)
- [Commits](mamba-org/setup-micromamba@v2...v3)

---
updated-dependencies:
- dependency-name: mamba-org/setup-micromamba
  dependency-version: '3'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -35,7 +35,7 @@ jobs:
         shell: bash -el {0}
     steps:
       - uses: actions/checkout@v6
-      - uses: mamba-org/setup-micromamba@v2
+      - uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: environment.yml
       - run: ./tools/extract_version.sh
@@ -86,7 +86,7 @@ jobs:
         shell: bash -el {0}
     steps:
       - uses: actions/checkout@v6
-      - uses: mamba-org/setup-micromamba@v2
+      - uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: environment.yml
       - run: ./tools/extract_version.sh
@@ -112,7 +112,7 @@ jobs:
         shell: bash -el {0}
     steps:
       - uses: actions/checkout@v6
-      - uses: mamba-org/setup-micromamba@v2
+      - uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: environment.yml
       # https://nsis.sourceforge.io/Download