Update dependency jfcherng/php-diff to v7

Author: renovate[bot]

composer.json

@@ -27,7 +27,7 @@
         "illuminate/pagination": "^7.0|^8.0|^9.0|^10.0|^11.0|^12.0|^13.0",
         "illuminate/encryption": "^7.0|^8.0|^9.0|^10.0|^11.0|^12.0|^13.0",
         "guzzlehttp/guzzle": "^6.5.5|^7.2",
-        "jfcherng/php-diff": "^6.13",
+        "jfcherng/php-diff": "^7.0",
         "doctrine/dbal": "^3.3|^4.0",
         "ext-posix": "*"
     },