Bump php-http/message from 1.11.0 to 1.11.1 in /server

Bumps [php-http/message](https://github.com/php-http/message) from 1.11.0 to 1.11.1.
- [Release notes](https://github.com/php-http/message/releases)
- [Changelog](https://github.com/php-http/message/blob/master/CHANGELOG.md)
- [Commits](https://github.com/php-http/message/compare/1.11.0...1.11.1)

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

server/composer.lock

@@ -1263,16 +1263,16 @@
         },
         {
             "name": "php-http/message",
-            "version": "1.11.0",
+            "version": "1.11.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-http/message.git",
-                "reference": "fb0dbce7355cad4f4f6a225f537c34d013571f29"
+                "reference": "887734d9c515ad9a564f6581a682fff87a6253cc"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-http/message/zipball/fb0dbce7355cad4f4f6a225f537c34d013571f29",
-                "reference": "fb0dbce7355cad4f4f6a225f537c34d013571f29",
+                "url": "https://api.github.com/repos/php-http/message/zipball/887734d9c515ad9a564f6581a682fff87a6253cc",
+                "reference": "887734d9c515ad9a564f6581a682fff87a6253cc",
                 "shasum": ""
             },
             "require": {
@@ -1331,9 +1331,9 @@
             ],
             "support": {
                 "issues": "https://github.com/php-http/message/issues",
-                "source": "https://github.com/php-http/message/tree/1.11.0"
+                "source": "https://github.com/php-http/message/tree/1.11.1"
             },
-            "time": "2021-02-01T08:54:58+00:00"
+            "time": "2021-05-24T18:11:08+00:00"
         },
         {
             "name": "php-http/message-factory",