fix isort error, fix missing shell:bash

.github/workflows/test_build.yaml

@@ -40,10 +40,12 @@ jobs:
       - name: Install build tools
         run: pip install setuptools wheel build pyinstaller
       - name: Install requirements
+        shell: bash
         run: if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
 
       - name: Read VERSION file
         id: getversion
+        shell: bash
         run: echo "$(python ./setup.py --version)"
 
       - name: Run Tests - Source

src/besapi/plugin_utilities.py

@@ -1,10 +1,10 @@
 """This is a set of utility functions for use in multiple plugins"""
 
 import argparse
-import os
 import logging
 import logging.handlers
 import ntpath
+import os
 import sys