Update action_build.yml

.github/workflows/action_build.yml

@@ -26,7 +26,7 @@ jobs:
         find . -type f > before_test_files.txt
         conda env create -f environment.yml
         pip install --upgrade pip
-        pip install pycodestyle flake8 pydocstyle 
+        pip install pycodestyle flake8 pydocstyle coverage
         flake8 --ignore E203,W503 --exclude=examples,tests --statistics --count --exit-zero jarvis
         pycodestyle --ignore E203,W503 --exclude=examples,testfiles jarvis
         pydocstyle --match-dir=core --match-dir=io --match-dir=io --match-dir=ai --match-dir=analysis --match-dir=db --match-dir=tasks --count jarvis