update CI workflow

.github/workflows/CI.yml

@@ -25,7 +25,7 @@ jobs:
         conda config --add channels bioconda 
         conda config --add channels conda-forge
         # conda env update --file environment.yml --name base
-        conda install simba_pbg=1.1
+        conda install simba
         python -m pip install --upgrade pip
         pip install -r requirements.txt
         pip install -e .