Update adriansuter/php-autoload-override requirement from ^1.4 to ^1.5

Updates the requirements on [adriansuter/php-autoload-override](https://github.com/adriansuter/php-autoload-override) to permit the latest version.
- [Release notes](https://github.com/adriansuter/php-autoload-override/releases)
- [Commits](adriansuter/php-autoload-override@1.4...1.5)

---
updated-dependencies:
- dependency-name: adriansuter/php-autoload-override
  dependency-type: direct:development
...

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

composer.json

@@ -37,7 +37,7 @@
   },
   "require-dev": {
     "ext-json": "*",
-    "adriansuter/php-autoload-override": "^1.4",
+    "adriansuter/php-autoload-override": "^1.5",
     "http-interop/http-factory-tests": "^1.1.0",
     "php-http/psr7-integration-tests": "1.3.0",
     "phpspec/prophecy": "^1.19",