Remove shell specification

Author: PussInDasBoot

.github/workflows/hiperseis_main_ci.yml

@@ -37,7 +37,6 @@ jobs:
         git submodule update --init --recursive
         source setup_scripts/conda_env_linux.sh hiperseis
     - name: Running pytest
-      shell: bash -el {0}
       run: |
         eval "$(conda shell.bash hook)"
         conda init