Switch to PHPCSStandards/PHP_CodeSniffer

The Squizlabs repo has been abandoned. The project continues in a fork in the PHPCSStandards organisation.

Includes updating the dev required version of the Composer plugin, which should make sure that this repo already switches over to using the PHPCSStandards version of PHPCS.

Includes updating the suggested version of the Composer plugin to the version which made the same change.

Ref:
* squizlabs/PHP_CodeSniffer 3932

.github/workflows/ci.yml

@@ -47,7 +47,7 @@ jobs:
       # Validate the xml file.
       # @link http://xmlsoft.org/xmllint.html
       - name: Validate against schema
-        run: xmllint --noout --schema vendor/squizlabs/php_codesniffer/phpcs.xsd ./*/ruleset.xml
+        run: xmllint --noout --schema vendor/phpcsstandards/php_codesniffer/phpcs.xsd ./*/ruleset.xml
 
       # Check the code-style consistency of the xml file.
       - name: Check code style

README.md

@@ -37,9 +37,9 @@ Symfony Polyfill Library | Corresponding PHPCompatibility Ruleset | Includes
 
 ## Requirements
 
-* [PHP_CodeSniffer](https://github.com/squizlabs/PHP_CodeSniffer).
-    * PHP 5.3+ for use with [PHP_CodeSniffer](https://github.com/squizlabs/PHP_CodeSniffer) 2.3.0+.
-    * PHP 5.4+ for use with [PHP_CodeSniffer](https://github.com/squizlabs/PHP_CodeSniffer) 3.0.2+.
+* [PHP_CodeSniffer](https://github.com/PHPCSStandards/PHP_CodeSniffer).
+    * PHP 5.3+ for use with [PHP_CodeSniffer](https://github.com/PHPCSStandards/PHP_CodeSniffer) 2.3.0+.
+    * PHP 5.4+ for use with [PHP_CodeSniffer](https://github.com/PHPCSStandards/PHP_CodeSniffer) 3.0.2+.
 
     Use the latest stable release of PHP_CodeSniffer for the best results.
     The minimum _recommended_ version of PHP_CodeSniffer is version 2.6.0.

composer.json

@@ -28,7 +28,7 @@
     "phpcompatibility/phpcompatibility-passwordcompat" : "^1.0"
   },
   "require-dev" : {
-    "dealerdirect/phpcodesniffer-composer-installer": "^1.0",
+    "dealerdirect/phpcodesniffer-composer-installer": "^1.0.1",
     "symfony/polyfill-php54": "1.19",
     "symfony/polyfill-php55": "1.19",
     "symfony/polyfill-php56": "1.19",
@@ -40,7 +40,7 @@
     "symfony/polyfill-php80": "1.x-dev"
   },
   "suggest" : {
-    "dealerdirect/phpcodesniffer-composer-installer": "^1.0 || This Composer plugin will sort out the PHP_CodeSniffer 'installed_paths' automatically.",
+    "dealerdirect/phpcodesniffer-composer-installer": "^1.0.1 || This Composer plugin will sort out the PHP_CodeSniffer 'installed_paths' automatically.",
     "roave/security-advisories": "dev-master || Helps prevent installing dependencies with known security issues."
   },
   "prefer-stable" : true