Update spaze/phpstan-disallowed-calls requirement from 2.7.0 to 2.8.0

Updates the requirements on spaze/phpstan-disallowed-calls to permit the latest version.

---
updated-dependencies:
- dependency-name: spaze/phpstan-disallowed-calls
  dependency-type: direct:development
...

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

composer.json

@@ -26,7 +26,7 @@
         "phpstan/phpstan-strict-rules": "1.4.4",
         "phpstan/phpstan-nette": "1.1.0",
         "nepada/phpstan-nette-tester": "1.0.0",
-        "spaze/phpstan-disallowed-calls": "2.7.0",
+        "spaze/phpstan-disallowed-calls": "2.8.0",
         "shipmonk/phpstan-rules": "1.2.0",
         "php-parallel-lint/php-parallel-lint": "1.3.2",
         "nepada/coding-standard": "7.5.2",