Upgrade dependencies

Signed-off-by: William Desportes <williamdes@wdes.fr>

Author: williamdes

composer.json

@@ -16,9 +16,9 @@
         "issues": "https://github.com/phpmyadmin/coding-standard/issues"
     },
     "require": {
-        "php": "^7.1",
-        "doctrine/coding-standard": "^6.0",
-        "squizlabs/php_codesniffer": "^3.4.0"
+        "php": ">=7.1",
+        "doctrine/coding-standard": "^8.1",
+        "squizlabs/php_codesniffer": "^3.5.5"
     },
     "config": {
         "sort-packages": true