remove php 7.3 from workflow

Author: samsonasik

.github/workflows/test-coding-standards.yml

@@ -21,7 +21,6 @@ jobs:
       fail-fast: false
       matrix:
         php-version:
-          - '7.3'
           - '7.4'
           - '8.0'
 

.github/workflows/test-phpunit.yml

@@ -29,7 +29,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-versions: ['7.3', '7.4', '8.0', '8.1']
+        php-versions: ['7.4', '8.0', '8.1']
         db-platforms: ['MySQLi', 'Postgre', 'SQLite3', 'SQLSRV']
         mysql-versions: ['5.7']
         include: