Use conda to setup python env

.github/workflows/asv.yml

@@ -10,26 +10,33 @@ jobs:
   build:
     name: Build and run benchmarks
     runs-on: ubuntu-20.04
-
+    defaults:
+      run:
+        shell: bash -l {0} # required for conda env
     steps:
       - uses: actions/checkout@v3
         with:
           repository: 'scipp/scipp'
           submodules: true
           fetch-depth: 0  # history required so cmake can determine version
-      - uses: actions/checkout@v3
+
+      - name: Setup conda environment
+        uses: mamba-org/setup-micromamba@v2
         with:
-          path: 'scipp-benchmarks'
+          micromamba-version: 1.5.6-0
+          environment-file: .buildconfig/ci-linux.yml
+          cache-environment: true
+          create-args: python=3.10
 
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v3
         with:
-          python-version: '3.10'
-      - run: python -m pip install --upgrade pip
-      - run: python -m pip install -r requirements/ci.txt
+          path: 'scipp-benchmarks'
 
       - uses: hendrikmuhs/[email protected]
 
-      - run: tox -e lib
+      - run: cmake --preset base
+      - run: cmake --build --preset build
+      - run: ctest --preset test
       - run: tox -e asv
 
       - uses: stefanzweifel/git-auto-commit-action@v4