Excluding macos unit testing on python 3.8 and 3.9

Author: prabhakk-mw

.github/workflows/run-unit-tests.yml

@@ -55,6 +55,11 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
         python-version: ['3.8', '3.9', '3.10', '3.11']
+        exclude:
+          - os: macos-latest
+            python-version: '3.8'
+          - os: macos-latest
+            python-version: '3.9'
 
     runs-on: ${{ matrix.os }}