Removed 7.3 php check from build

Author: Manjusha.S

.github/workflows/main.yml

@@ -54,7 +54,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['7.3', '7.4', '8.0', '8.1']
+        php-versions: ['7.4', '8.0', '8.1']
     steps:
       - uses: actions/checkout@v2