Composer: allow for PHPCS 4.0 + PHPCompatibility 10.0

As PHPCompatibility now has a `10.0.0-alpha1` tag available which is compatible with PHP_CodeSniffer 4.0, we can update the requirements.

Includes tightening up the allowed version of the PHPCS Composer plugin as the `0.7` version is already five years old, so I don't think we still need allow for older versions.

Note: ruleset adjustments to allow for PHPCompatibility 10 had already been made ahead of time via PRs 26, 51, 52

Author: jrfnl

composer.json

@@ -22,9 +22,9 @@
     },
     "require" : {
         "php" : ">=5.4",
-        "squizlabs/php_codesniffer" : "^3.13.0",
-        "phpcompatibility/php-compatibility" : "^9.0.0 || ^10.0.0",
-        "dealerdirect/phpcodesniffer-composer-installer" : "^0.4.1 || ^0.5 || ^0.6.2 || ^0.7 || ^1.0"
+        "squizlabs/php_codesniffer" : "^3.13.3 || ^4.0.0",
+        "phpcompatibility/php-compatibility" : "^10.0.0@dev",
+        "dealerdirect/phpcodesniffer-composer-installer" : "^0.7 || ^1.0"
     },
     "require-dev" : {
         "roave/security-advisories" : "dev-master"