add activation

Author: wolfv

.github/workflows/ci.yml

@@ -41,13 +41,17 @@ jobs:
       - name: Build
         shell: cmd /C CALL {0}
         run:  |
+          call micromamba activate ci_environment
+
           mkdir build
           cd build
           cmake -GNinja ..
           ninja
 
       - name: Test
-        shell: cmd /C CALL {0}
-        run:  |
+        shell: cmd /C call {0}
+        run: |
+          call micromamba activate ci_environment
+
           cd build
           ninja test