Bump guzzlehttp/psr7 from 2.11.0 to 2.12.1 (#154)

Bumps [guzzlehttp/psr7](https://github.com/guzzle/psr7) from 2.11.0 to 2.12.1.
- [Release notes](https://github.com/guzzle/psr7/releases)
- [Changelog](https://github.com/guzzle/psr7/blob/2.12/CHANGELOG.md)
- [Commits](https://github.com/guzzle/psr7/compare/2.11.0...2.12.1)

---
updated-dependencies:
- dependency-name: guzzlehttp/psr7
  dependency-version: 2.12.1
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

composer.lock

@@ -1475,16 +1475,16 @@
         },
         {
             "name": "guzzlehttp/psr7",
-            "version": "2.11.0",
+            "version": "2.12.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/psr7.git",
-                "reference": "bbb5e61349fa5cb822b3e87842b951088b76b81f"
+                "reference": "172ef2f4e9824c1e058b7f30be8ae25a02c0f2b7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/psr7/zipball/bbb5e61349fa5cb822b3e87842b951088b76b81f",
+                "url": "https://api.github.com/repos/guzzle/psr7/zipball/172ef2f4e9824c1e058b7f30be8ae25a02c0f2b7",
-                "reference": "bbb5e61349fa5cb822b3e87842b951088b76b81f",
+                "reference": "172ef2f4e9824c1e058b7f30be8ae25a02c0f2b7",
                 "shasum": ""
             },
             "require": {
@@ -1574,7 +1574,7 @@
             ],
             "support": {
                 "issues": "https://github.com/guzzle/psr7/issues",
-                "source": "https://github.com/guzzle/psr7/tree/2.11.0"
+                "source": "https://github.com/guzzle/psr7/tree/2.12.1"
             },
             "funding": [
                 {
@@ -1590,7 +1590,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2026-06-02T12:30:48+00:00"
+            "time": "2026-06-18T09:49:37+00:00"
         },
         {
             "name": "jean85/pretty-package-versions",