Update dependency psr/http-message to v2

| datasource | package          | from | to  |
| ---------- | ---------------- | ---- | --- |
| packagist  | psr/http-message | 1.1  | 2.0 |


Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

composer.json

@@ -16,7 +16,7 @@
         "php-http/discovery": "^1.19.4",
         "php-http/httplug": "^2.4.0",
         "psr/http-client": "^1.0.3",
-        "psr/http-message": "^1.1",
+        "psr/http-message": "^2.0",
         "psr/log": "^3.0.0",
         "symfony/console": "^6.4.9"
     },