[CKLS-21158] Update PHP requirement to >=7.2.5 and bump dependencies

Updated `composer.json` to require PHP >=7.2.5, aligning with modern PHP versions. Also upgraded `symfony/flex` to v1.22.0 and `myclabs/deep-copy` to v1.13.0, ensuring compatibility and access to the latest features and fixes. Adjusted `composer.lock` to reflect these changes.

Author: Alex-Caepio

composer.json

@@ -19,7 +19,7 @@
     "psr-4": { "CrossKnowledge\\DataTableBundle\\": "" }
   },
   "require": {
-    "php": ">=5.5",
+    "php": ">=7.2.5",
     "symfony/flex": "^1.0",
     "symfony/form": "^5.4",
     "symfony/options-resolver": "^5.4",