Update required PHP version to 5.6

sheabunge · sheabunge · commit af4edc35309c · 2022-05-15T00:43:19.000+10:00
diff --git a/code-snippets.php b/code-snippets.php
@@ -24,7 +24,7 @@
 License URI:  license.txt
 Text Domain:  code-snippets
 Domain Path:  /languages
-Requires PHP: 5.2
+Requires PHP: 5.6
 Requires at least: 3.6
 */
 
