Bump guzzlehttp/psr7 from 1.8.1 to 2.2.1 in /tests/integration

Bumps [guzzlehttp/psr7](https://github.com/guzzle/psr7) from 1.8.1 to 2.2.1.
- [Release notes](https://github.com/guzzle/psr7/releases)
- [Changelog](https://github.com/guzzle/psr7/blob/master/CHANGELOG.md)
- [Commits](https://github.com/guzzle/psr7/compare/1.8.1...2.2.1)

---
updated-dependencies:
- dependency-name: guzzlehttp/psr7
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

tests/integration/composer.lock

@@ -416,16 +416,16 @@
         },
         {
             "name": "guzzlehttp/psr7",
-            "version": "2.1.0",
+            "version": "2.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/psr7.git",
-                "reference": "089edd38f5b8abba6cb01567c2a8aaa47cec4c72"
+                "reference": "c94a94f120803a18554c1805ef2e539f8285f9a2"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/psr7/zipball/089edd38f5b8abba6cb01567c2a8aaa47cec4c72",
-                "reference": "089edd38f5b8abba6cb01567c2a8aaa47cec4c72",
+                "url": "https://api.github.com/repos/guzzle/psr7/zipball/c94a94f120803a18554c1805ef2e539f8285f9a2",
+                "reference": "c94a94f120803a18554c1805ef2e539f8285f9a2",
                 "shasum": ""
             },
             "require": {
@@ -449,7 +449,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "2.1-dev"
+                    "dev-master": "2.2-dev"
                 }
             },
             "autoload": {
@@ -511,7 +511,7 @@
             ],
             "support": {
                 "issues": "https://github.com/guzzle/psr7/issues",
-                "source": "https://github.com/guzzle/psr7/tree/2.1.0"
+                "source": "https://github.com/guzzle/psr7/tree/2.2.1"
             },
             "funding": [
                 {
@@ -527,7 +527,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-10-06T17:43:30+00:00"
+            "time": "2022-03-20T21:55:58+00:00"
         },
         {
             "name": "psr/container",