ci: pin setuptools<81 so coverage-badge can import pkg_resources

Author: harshitha-cstk

.github/workflows/unit-test.yml

@@ -19,7 +19,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -r requirements.txt  # If you have a requirements file
-          pip install coverage pytest coverage-badge setuptools
+          pip install coverage pytest coverage-badge "setuptools<81"
 
 
       - name: Run tests and coverage