[TASK] Update behat/behat requirement from ^3.15 to ^3.16

Updates the requirements on [behat/behat](https://github.com/Behat/Behat) to permit the latest version.
- [Release notes](https://github.com/Behat/Behat/releases)
- [Changelog](https://github.com/Behat/Behat/blob/master/CHANGELOG.md)
- [Commits](Behat/Behat@v3.15.0...v3.16.0)

---
updated-dependencies:
- dependency-name: behat/behat
  dependency-type: direct:development
...

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

composer.json

@@ -16,7 +16,7 @@
         "ext-simplexml": "*"
     },
     "require-dev": {
-        "behat/behat": "^3.15",
+        "behat/behat": "^3.16",
         "dvdoug/behat-code-coverage": "^5.3.5",
         "ergebnis/composer-normalize": "^2.44.0",
         "friendsofphp/php-cs-fixer": "^3.64.0",