Bump jangregor/phpstan-prophecy from 0.3.0 to 0.4.2

Bumps [jangregor/phpstan-prophecy](https://github.com/Jan0707/phpstan-prophecy) from 0.3.0 to 0.4.2.
- [Release notes](https://github.com/Jan0707/phpstan-prophecy/releases)
- [Commits](Jan0707/phpstan-prophecy@0.3.0...0.4.2)

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

Author: dependabot-preview[bot]

composer.json

@@ -17,7 +17,7 @@
         "composer/xdebug-handler": "^1.3",
         "eloquent/phpstan-phony": "0.3.0",
         "evenement/evenement": "^3",
-        "jangregor/phpstan-prophecy": "0.3.0",
+        "jangregor/phpstan-prophecy": "0.4.2",
         "jetbrains/phpstorm-stubs": "dev-master",
         "league/html-to-markdown": "^4",
         "nikic/php-parser": "^4",