Bump version to 6.9.6 and update changelog

Updated version numbers in package.json, plugin.php, and readme.txt to 6.9.6. Changelog now includes coding standards cleanup and a new minimum PHP version requirement of 7.3.

Author: mtoensing

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "simpletoc",
-	"version": "6.9.5",
+	"version": "6.9.6",
 	"author": "Marc Tönsing",
 	"description": "SEO-friendly Table of Contents Gutenberg block. No JavaScript and no CSS means faster loading.",
 	"main": "build/index.js",

plugin.php

@@ -3,7 +3,7 @@
  * Plugin Name:   SimpleTOC - Table of Contents Block
  * Plugin URI:    https://marc.tv/simpletoc-wordpress-inhaltsverzeichnis-plugin-gutenberg/
  * Description:   SEO-friendly Table of Contents Gutenberg block. No JavaScript and no CSS means faster loading.
- * Version:       6.9.5
+ * Version:       6.9.6
  * Author:        Marc Tönsing
  * Author URI:    https://toensing.com
  * Text Domain:   simpletoc

readme.txt

@@ -3,7 +3,7 @@ Contributors: MarcDK
 Tags: TOC, Table of Contents, Block, Accessibility, Table
 Requires at least: 5.9
 Tested up to: 6.9
-Stable tag: 6.9.5
+Stable tag: 6.9.6
 Requires PHP: 7.3
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
@@ -70,8 +70,9 @@ SimpleTOC is open-source and developed on [GitHub Pages](https://github.com/mtoe
 
 == Changelog ==
 
-= 6.9.5 =
+= 6.9.6 =
 * Added: Coding standards cleanup with improved rules, cleaner code, safer output, and consistent naming. Thanks @ronalfy
+* Added: Minimum PHP version requirement set to 7.3
 
 = 6.9.4 =
 * Added: Introduced proper PHP namespaces to avoid class and function name conflicts and improve overall code robustness. Thanks @ronalfy.