build(deps-dev): bump guzzlehttp/psr7 from 2.0.0 to 2.1.0 (#128)

Bumps [guzzlehttp/psr7](https://github.com/guzzle/psr7) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/guzzle/psr7/releases)
- [Changelog](https://github.com/guzzle/psr7/blob/master/CHANGELOG.md)
- [Commits](guzzle/psr7@2.0.0...2.1.0)

---
updated-dependencies:
- dependency-name: guzzlehttp/psr7
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

composer.json

@@ -21,7 +21,7 @@
     "require-dev": {
         "composer/package-versions-deprecated": "1.11.99.4",
         "friendsofphp/php-cs-fixer": "^2.19",
-        "guzzlehttp/psr7": "^2.0",
+        "guzzlehttp/psr7": "^2.1",
         "http-interop/http-factory-guzzle": "^1.2",
         "infection/infection": "^0.11.5",
         "php-http/mock-client": "^1.1",