devops: publish to conda on 3.8

Author: mxschmitt

.github/workflows/ci.yml

@@ -169,8 +169,10 @@ jobs:
       - name: Get conda
         uses: conda-incubator/setup-miniconda@v3
         with:
-          python-version: 3.9
+          # This version determines our minimal supported version. It supersedes the minimum version in the meta.yaml.
+          python-version: 3.8
           channels: conda-forge
+          miniconda-version: latest
       - name: Prepare
         run: conda install conda-build conda-verify
       - name: Build

.github/workflows/publish.yml

@@ -31,7 +31,8 @@ jobs:
       - name: Get conda
         uses: conda-incubator/setup-miniconda@v3
         with:
-          python-version: 3.12
+          # This version determines our minimal supported version. It supersedes the minimum version in the meta.yaml.
+          python-version: 3.8
           channels: conda-forge
           miniconda-version: latest
       - name: Prepare