Bump symfony/process from 5.4.46 to 5.4.51 in /test/lib/webdriver

Bumps [symfony/process](https://github.com/symfony/process) from 5.4.46 to 5.4.51.
- [Release notes](https://github.com/symfony/process/releases)
- [Changelog](https://github.com/symfony/process/blob/8.1/CHANGELOG.md)
- [Commits](symfony/process@v5.4.46...v5.4.51)

---
updated-dependencies:
- dependency-name: symfony/process
  dependency-version: 5.4.51
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

test/lib/webdriver/composer.json

@@ -3,6 +3,6 @@
         "php-webdriver/webdriver": "1.12.1.0",
         "symfony/polyfill-mbstring": "v1.26.0",
         "symfony/polyfill-php80": "v1.26.0",
-        "symfony/process": "v5.4.46"
+        "symfony/process": "v5.4.51"
     }
 }