Fix build workflow

.github/workflows/build_workflow.yml

@@ -15,6 +15,7 @@ env:
 
 jobs:
   pre-commit-hooks:
+    name: lint with pre-commit
     runs-on: ubuntu-latest
     timeout-minutes: 2
     steps:
@@ -42,8 +43,8 @@ jobs:
         uses: pre-commit/[email protected]
 
   build:
-    name: Build (Python ${{ matrix.python-version }})
-    runs-on: "ubuntu-latest"
+    name: test pyremap - python ${{ matrix.python-version }}
+    runs-on: ubuntu-latest
     timeout-minutes: 20
     defaults:
       run:
@@ -65,30 +66,35 @@ jobs:
         name: Cache Conda
         uses: actions/cache@v3
         env:
-          # Increase this value to reset cache if conda-env/ci.yml has not changed in the workflow
+          # Increase this value to reset cache if dev-spec.txt has not changed in the workflow
           CACHE_NUMBER: 0
         with:
           path: ~/conda_pkgs_dir
           key:
             ${{ runner.os }}-${{ matrix.python-version }}-conda-${{ env.CACHE_NUMBER }}-${{
-            hashFiles('conda-env/dev.yml') }}
+            hashFiles('dev-spec.txt') }}
 
       - if: ${{ steps.skip_check.outputs.should_skip != 'true' }}
         name: Set up Conda Environment
         uses: conda-incubator/setup-miniconda@v2
         with:
           activate-environment: "pyremap_ci"
+          miniforge-variant: Mambaforge
+          miniforge-version: latest
+          use-mamba: true
+          mamba-version: "*"
+          channels: conda-forge,defaults
           channel-priority: strict
           auto-update-conda: true
           # IMPORTANT: This needs to be set for caching to work properly!
           use-only-tar-bz2: true
           python-version: ${{ matrix.python-version }}
-        run: mamba install --file dev-spec.txt
-
 
       - if: ${{ steps.skip_check.outputs.should_skip != 'true' }}
         name: Install pyremap
-        run: python -m pip install .
+        run: |
+          mamba install --file dev-spec.txt
+          python -m pip install .
 
       - if: ${{ steps.skip_check.outputs.should_skip != 'true' }}
         name: Run Tests