Bump mamba-org/setup-micromamba from 1 to 2

Bumps [mamba-org/setup-micromamba](https://github.com/mamba-org/setup-micromamba) from 1 to 2.
- [Release notes](https://github.com/mamba-org/setup-micromamba/releases)
- [Commits](mamba-org/setup-micromamba@v1...v2)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/cd.yml

@@ -34,7 +34,7 @@ jobs:
         uses: "actions/checkout@v4"
 
       - name: "Install Conda environment"
-        uses: "mamba-org/setup-micromamba@v1"
+        uses: "mamba-org/setup-micromamba@v2"
         with:
           environment-file: "src/environment.yml"
           # environment-name: "ci"