Bump symfony/http-client from 5.2.7 to 5.2.8 in /server

Bumps [symfony/http-client](https://github.com/symfony/http-client) from 5.2.7 to 5.2.8.
- [Release notes](https://github.com/symfony/http-client/releases)
- [Changelog](https://github.com/symfony/http-client/blob/5.x/CHANGELOG.md)
- [Commits](https://github.com/symfony/http-client/compare/v5.2.7...v5.2.8)

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

server/composer.lock

@@ -2041,16 +2041,16 @@
         },
         {
             "name": "symfony/http-client",
-            "version": "v5.2.7",
+            "version": "v5.2.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/http-client.git",
-                "reference": "cdaf3df771d3ea9b05696c9e91281ffd056aff66"
+                "reference": "a2baf9c3c5b25e04740cece0e429f0a0013002f2"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/http-client/zipball/cdaf3df771d3ea9b05696c9e91281ffd056aff66",
-                "reference": "cdaf3df771d3ea9b05696c9e91281ffd056aff66",
+                "url": "https://api.github.com/repos/symfony/http-client/zipball/a2baf9c3c5b25e04740cece0e429f0a0013002f2",
+                "reference": "a2baf9c3c5b25e04740cece0e429f0a0013002f2",
                 "shasum": ""
             },
             "require": {
@@ -2107,7 +2107,7 @@
             "description": "Provides powerful methods to fetch HTTP resources synchronously or asynchronously",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/http-client/tree/v5.2.7"
+                "source": "https://github.com/symfony/http-client/tree/v5.2.8"
             },
             "funding": [
                 {
@@ -2123,7 +2123,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-04-07T16:27:53+00:00"
+            "time": "2021-05-10T14:39:23+00:00"
         },
         {
             "name": "symfony/http-client-contracts",