Merge pull request #49 from sourceboat/dependabot/composer/slevomat/coding-standard-tw-7.0

Update slevomat/coding-standard requirement from ^6.3 to ^7.0

Author: tristansb1

composer.json

@@ -29,7 +29,7 @@
       "phpunit/phpunit": "^9.3",
       "phpmd/phpmd": "^2.6",
       "squizlabs/php_codesniffer": "^3.3",
-      "slevomat/coding-standard": "^6.3"
+      "slevomat/coding-standard": "^7.0"
     },
     "autoload": {
         "psr-4": {