Add micromamba activation

Signed-off-by: Julien Jerphanion <[email protected]>

Author: jjerphan

.github/workflows/coverage.yml

@@ -19,6 +19,11 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
   cancel-in-progress: true
 
+defaults:
+  run:
+    # micromamba activation
+    shell: bash -l -eo pipefail {0}
+
 jobs:
   coverage:
     name: Code Coverage