Replace ezyang/htmlpurifier with voku/anti-xss (#3724)

* Replace ezyang/htmlpurifier with voku/anti-xss

* Update XssVulnerabilityTest

Author: dmytromikhieiev1985

CHANGELOG.md

@@ -1440,3 +1440,6 @@ For a comprehensive list of all class changes, and a semi-automated migration pa
 ## Previous versions of PHPExcel
 
 The changelog for the project when it was called PHPExcel is [still available](./CHANGELOG.PHPExcel.md).
+
+### Changed
+- Replace ezyang/htmlpurifier (LGPL2.1) with voku/anti-xss (MIT)

composer.json

@@ -76,13 +76,13 @@
         "ext-xmlwriter": "*",
         "ext-zip": "*",
         "ext-zlib": "*",
-        "ezyang/htmlpurifier": "^4.15",
         "maennchen/zipstream-php": "^2.1 || ^3.0",
         "markbaker/complex": "^3.0",
         "markbaker/matrix": "^3.0",
         "psr/http-client": "^1.0",
         "psr/http-factory": "^1.0",
-        "psr/simple-cache": "^1.0 || ^2.0 || ^3.0"
+        "psr/simple-cache": "^1.0 || ^2.0 || ^3.0",
+        "voku/anti-xss": "^4.1"
     },
     "require-dev": {
         "dealerdirect/phpcodesniffer-composer-installer": "dev-main",