fix: from mambaforge to miniforge

.github/workflows/basic.yml

@@ -77,11 +77,9 @@ jobs:
     - uses: actions/checkout@v4
     - name: Fail-fast for outdated pipelines
       run: .github/workflows/fail-fast.sh
-    - uses: conda-incubator/setup-miniconda@master
+    - uses: conda-incubator/setup-miniconda@v3
       with:
         environment-file: environment.yml
-        miniforge-variant: Mambaforge
-        use-mamba: true
     - name: Run tests
       run: |
         # FIXME: The unit tests currently only work with editable installs
@@ -116,11 +114,9 @@ jobs:
     - name: fix python3.9
       run: |
         sed -i "s/python =3.11/python =3.9/g" environment.yml
-    - uses: conda-incubator/setup-miniconda@master
+    - uses: conda-incubator/setup-miniconda@v3
       with:
         environment-file: environment.yml
-        miniforge-variant: Mambaforge
-        use-mamba: true
     - name: Run tests
       run: |
         # FIXME: The unit tests currently only work with editable installs

.github/workflows/deployment.yml

@@ -131,11 +131,8 @@ jobs:
     if: github.event_name == 'workflow_dispatch'
     needs: deploy-pypi
     steps:
-      - uses: conda-incubator/setup-miniconda@master
+      - uses: conda-incubator/setup-miniconda@v3
         with:
-          miniforge-variant: Mambaforge
-          use-mamba: true
-          mamba-version: "*"
           channels: conda-forge,defaults
           channel-priority: true
       - name: Deploy on CVMFS

.readthedocs.yaml

@@ -1,8 +1,8 @@
 version: 2
 build:
-  os: ubuntu-20.04
+  os: ubuntu-24.04
   tools:
-    python: mambaforge-4.10
+    python: mambaforge-latest
 sphinx:
   configuration: docs/source/conf.py
   fail_on_warning: true