Merge pull request #6 from pnavaro/dependabot/github_actions/conda-incubator/setup-miniconda-3.1.0

Bump conda-incubator/setup-miniconda from 2.1.1 to 3.1.0

Author: pnavaro

.github/workflows/book.yml

@@ -15,7 +15,7 @@ jobs:
         python-version: 3.9
 
     - name: Setup Miniconda
-      uses: conda-incubator/setup-miniconda@v2.1.1
+      uses: conda-incubator/setup-miniconda@v3.1.0
       with:
         environment-file: environment.yml
         activate-environment: python-fortran