Update remorhaz/php-json-path requirement from ^0.7.7 to ^0.8.1

Updates the requirements on [remorhaz/php-json-path](https://github.com/remorhaz/php-json-path) to permit the latest version.
- [Release notes](https://github.com/remorhaz/php-json-path/releases)
- [Changelog](https://github.com/remorhaz/php-json-path/blob/master/CHANGELOG.md)
- [Commits](remorhaz/php-json-path@v0.7.7...v0.8.1)

---
updated-dependencies:
- dependency-name: remorhaz/php-json-path
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -29,7 +29,7 @@
     "require-dev": {
         "psalm/plugin-phpunit": "^0.19.0",
         "remorhaz/php-json-data": "^0.5.3",
-        "remorhaz/php-json-path": "^0.7.7",
+        "remorhaz/php-json-path": "^0.8.1",
         "squizlabs/php_codesniffer": "^3.7.2",
         "vimeo/psalm": "^5.12"
     },