Update infection/infection requirement from ^0.26 to ^0.26 || ^0.29

Updates the requirements on [infection/infection](https://github.com/infection/infection) to permit the latest version.
- [Release notes](https://github.com/infection/infection/releases)
- [Changelog](https://github.com/infection/infection/blob/master/CHANGELOG.md)
- [Commits](infection/infection@0.26.0...0.29.6)

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

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -17,7 +17,7 @@
     "require-dev": {
         "phpunit/phpunit": "^9.1",
         "http-interop/http-factory-guzzle": "^1.0",
-        "infection/infection": "^0.26",
+        "infection/infection": "^0.26 || ^0.29",
         "phpstan/phpstan": "^1.0.0",
         "php-http/guzzle7-adapter": "^1.0"
     },