Bump mamba-org/setup-micromamba from 2.0.4 to 2.0.6

Bumps [mamba-org/setup-micromamba](https://github.com/mamba-org/setup-micromamba) from 2.0.4 to 2.0.6.
- [Release notes](https://github.com/mamba-org/setup-micromamba/releases)
- [Commits](mamba-org/setup-micromamba@0dea637...7f29b8b)

---
updated-dependencies:
- dependency-name: mamba-org/setup-micromamba
  dependency-version: 2.0.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

.github/workflows/ci_mamba.yml

@@ -45,13 +45,13 @@ jobs:
 
       - name: Create mamba environment (Darwin)
         if: matrix.os == 'macos-13'
-        uses: mamba-org/setup-micromamba@0dea6379afdaffa5d528b3d1dabc45da37f443fc # v2.0.4
+        uses: mamba-org/setup-micromamba@7f29b8b80078b1b601dfa018b0f7425c587c63bb # v2.0.6
         with:
           environment-file: .build/envs/Darwin.yml
 
       - name: Create mamba environment (Linux)
         if: matrix.os == 'ubuntu-latest'
-        uses: mamba-org/setup-micromamba@0dea6379afdaffa5d528b3d1dabc45da37f443fc # v2.0.4
+        uses: mamba-org/setup-micromamba@7f29b8b80078b1b601dfa018b0f7425c587c63bb # v2.0.6
         with:
           environment-file: .build/envs/Linux.yml