switch to setup-micromamba (#185)

* Update ci.yaml

* Update linting.yaml

* Update whats_new.rst

* Update linting.yaml

Author: larsbuntemeyer

.github/workflows/ci.yaml

@@ -36,13 +36,12 @@ jobs:
           echo "CONDA_ENV_FILE=ci/requirements/environment.yml" >> $GITHUB_ENV
           echo "PYTHON_VERSION=${{ matrix.python-version }}" >> $GITHUB_ENV
       - name: Create conda environment
-        uses: mamba-org/provision-with-micromamba@main
+        uses: mamba-org/setup-micromamba@v1
         with:
           cache-downloads: true
-          cache-downloads-key: "${{runner.os}}-${{runner.arch}}-py${{matrix.python-version}}-${{hashFiles(env.CONDA_ENV_FILE)}}"
-          micromamba-version: 'latest'
+          cache-downloads-key: "${{runner.os}}-${{runner.arch}}-py${{matrix.python-version}}"
           environment-file: ci/requirements/environment.yml
-          extra-specs: |
+          create-args: >-
             python=${{ matrix.python-version }}
       - name: Install py-cordex
         run: |

.github/workflows/linting.yaml

@@ -30,17 +30,16 @@ jobs:
           fetch-depth: 0 # Fetch all history for all branches and tags.
 
       - name: Create conda environment
-        uses: mamba-org/provision-with-micromamba@main
+        uses: mamba-org/setup-micromamba@v1
         with:
-          environment-name: py-cordex-linting
-          micromamba-version: 'latest'
+          cache-downloads: true
+          cache-downloads-key: "${{runner.os}}-${{runner.arch}}-py${{matrix.python-version}}"
           environment-file: ci/requirements/environment.yml
-          extra-specs: |
+          create-args: >-
             python=${{ matrix.python-version }}
             black
             isort
             flake8
-          channels: conda-forge
 
       - name: Install py-cordex
         run: |

docs/whats_new.rst

@@ -10,6 +10,7 @@ Internal Changes
 ~~~~~~~~~~~~~~~~
 
 - Added CI for python 3.12 (:pull:`184`).
+- Switch CI to `setup-micromamba` (:pull:`185`).
 
 Bugfixes
 ~~~~~~~~