Bump mamba-org/provision-with-micromamba from 15 to 16 (#132)

Bumps [mamba-org/provision-with-micromamba](https://github.com/mamba-org/provision-with-micromamba) from 15 to 16.
- [Release notes](https://github.com/mamba-org/provision-with-micromamba/releases)
- [Commits](mamba-org/provision-with-micromamba@v15...v16)

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

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

.github/workflows/ci.yml

@@ -80,7 +80,7 @@ jobs:
 
       - name: Mamba setup
         if: matrix.install-method == 'mamba'
-        uses: mamba-org/provision-with-micromamba@v15
+        uses: mamba-org/provision-with-micromamba@v16
         with:
           environment-name: "ci"
           environment-file: environment.yml