Update psr/http-message requirement from ^1.0 to ^1.0 || ^2.0 in /src/Http (#1183)

Update psr/http-message requirement || ^2.0 in /src/Http

Updates the requirements on [psr/http-message](https://github.com/php-fig/http-message) to permit the latest version.
- [Release notes](https://github.com/php-fig/http-message/releases)
- [Changelog](https://github.com/php-fig/http-message/blob/master/CHANGELOG.md)
- [Commits](php-fig/http-message@1.0...2.0)

---
updated-dependencies:
- dependency-name: psr/http-message
  dependency-type: direct:production
...

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

Author: dependabot[bot]

composer.json

@@ -19,7 +19,7 @@
         "php-http/discovery": "^1.6",
         "php-http/httplug": "^1.0 || ^2.0",
         "php-http/message-factory": "^1.0.2",
-        "psr/http-message": "^1.0",
+        "psr/http-message": "^1.0 || ^2.0",
         "psr/http-message-implementation": "^1.0",
         "willdurand/geocoder": "^4.0"
     },