restricting single build for push

Signed-off-by: Kharude, Sachin <sachin.kharude@here.com>

Author: Kharude, Sachin

.github/workflows/main.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest]
         python-version: [3.8]
 
     steps: