update composer.json to reflect dropping support of php 7.3

Manjusha.S · Manjusha.S · commit b0ca2aed50b0 · 2022-10-17T11:16:24.000+05:30
diff --git a/composer.json b/composer.json
@@ -9,7 +9,7 @@
         "sort-packages": true
     },
     "require": {
-        "php": ">7.3",
+        "php": ">7.4",
         "ext-curl": "*",
         "ext-dom": "*",
         "ext-iconv": "*",
