Passing python version from "interpreter matrix" to mamba

.github/workflows/build_and_test.yml

@@ -12,7 +12,7 @@ jobs:
     strategy:
       max-parallel: 5
       matrix:
-        python-version: ["3.8"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
 
     # Skip `pull_request` runs on local PRs for which `push` runs are already triggered
     # yamllint disable-line rule:line-length
@@ -44,6 +44,8 @@ jobs:
       - name: Set up Conda environment
         uses: mamba-org/setup-micromamba@v1
         with:
+          create-args:
+            python=${{ matrix.python-version }}
           micromamba-version: "latest"
           environment-file: conda-environment.yml
           cache-environment: true

.pre-commit-config.yaml

@@ -1,8 +1,4 @@
 ---
-
-default_language_version:
-  python: python3.8  # This should be set to the lowest Python version that we support.
-
 repos:
 
   - repo: https://github.com/adrienverge/yamllint