Bump mamba-org/setup-micromamba from 2 to 3 in the actions group

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>

Author: dependabot[bot]

.github/workflows/asv-benchmarking-pr.yml

@@ -28,7 +28,7 @@ jobs:
 
 
       - name: Set up Conda environment
-        uses: mamba-org/setup-micromamba@v2
+        uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: ${{env.CONDA_ENV_FILE}}
           cache-environment: true

.github/workflows/ci.yml

@@ -78,7 +78,7 @@ jobs:
         - name: environment setup
           id: link-env-setup
           continue-on-error: true
-          uses: mamba-org/setup-micromamba@0dea6379afdaffa5d528b3d1dabc45da37f443fc # v2
+          uses: mamba-org/setup-micromamba@d7c9bd84e824b79d2af72a2d4196c7f4300d3476 # v2
           with:
             environment-file: ci/docs.yml
             cache-environment: true
@@ -88,7 +88,7 @@ jobs:
 
         - name: retry environment set up if failed
           if: steps.link-env-setup.outcome == 'failure'
-          uses: mamba-org/setup-micromamba@0dea6379afdaffa5d528b3d1dabc45da37f443fc # v2
+          uses: mamba-org/setup-micromamba@d7c9bd84e824b79d2af72a2d4196c7f4300d3476 # v2
           with:
             download-micromamba: false
             environment-file: ci/docs.yml

.github/workflows/upstream-dev-ci.yml

@@ -30,7 +30,7 @@ jobs:
           token: ${{ github.token }}
 
       - name: Set up environment
-        uses: mamba-org/setup-micromamba@v2
+        uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: ci/environment.yml
           create-args: >-