Update spaze/phpstan-disallowed-calls requirement from ^2.0 to ^3.1 (#5)

Updates the requirements on [spaze/phpstan-disallowed-calls](https://github.com/spaze/phpstan-disallowed-calls) to permit the latest version.
- [Release notes](https://github.com/spaze/phpstan-disallowed-calls/releases)
- [Commits](spaze/phpstan-disallowed-calls@v2.0.0...v3.1.1)

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

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Author: dependabot[bot]

composer.json

@@ -21,7 +21,7 @@
 		"phpstan/phpstan-nette": "^1.0",
 		"phpstan/phpstan-deprecation-rules": "^1.0",
 		"phpstan/phpstan-strict-rules": "^1.0",
-		"spaze/phpstan-disallowed-calls": "^2.0",
+		"spaze/phpstan-disallowed-calls": "^3.1",
 		"roave/security-advisories": "dev-master"
 	},
 	"autoload": {