bump mamba setup version in cI

Author: Daniel Morcuende

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Python 3.11
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: 3.11
 
@@ -57,7 +57,7 @@ jobs:
           sed -i -e "s/- python=.*/- python=$PYTHON_VERSION/g" environment.yml
 
       - name: Setup Mamba
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v2
         with:
           environment-file: environment.yml
           cache-environment: true