Update phpstan/phpstan requirement from ^0.12.28 to ^0.12.28 || ^1.0.0

Updates the requirements on [phpstan/phpstan](https://github.com/phpstan/phpstan) to permit the latest version.
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Changelog](https://github.com/phpstan/phpstan/blob/master/CHANGELOG.md)
- [Commits](phpstan/phpstan@0.12.28...1.2.0)

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

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

Author: dependabot[bot]

composer.json

@@ -26,7 +26,7 @@
     "phpunit/phpunit": "^8.5.13 || ^9.3.8",
     "slim/psr7": "^1.1",
     "squizlabs/php_codesniffer": "^3.5",
-    "phpstan/phpstan": "^0.12.28"
+    "phpstan/phpstan": "^0.12.28 || ^1.0.0"
   },
   "autoload": {
     "psr-4": {