Bump symfony/var-dumper from 5.2.6 to 5.2.7 in /server

Bumps [symfony/var-dumper](https://github.com/symfony/var-dumper) from 5.2.6 to 5.2.7.
- [Release notes](https://github.com/symfony/var-dumper/releases)
- [Changelog](https://github.com/symfony/var-dumper/blob/5.x/CHANGELOG.md)
- [Commits](https://github.com/symfony/var-dumper/compare/v5.2.6...v5.2.7)

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

server/composer.lock

@@ -2750,16 +2750,16 @@
         },
         {
             "name": "symfony/var-dumper",
-            "version": "v5.2.6",
+            "version": "v5.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/var-dumper.git",
-                "reference": "89412a68ea2e675b4e44f260a5666729f77f668e"
+                "reference": "27cb9f7cfa3853c736425c7233a8f68814b19636"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/var-dumper/zipball/89412a68ea2e675b4e44f260a5666729f77f668e",
-                "reference": "89412a68ea2e675b4e44f260a5666729f77f668e",
+                "url": "https://api.github.com/repos/symfony/var-dumper/zipball/27cb9f7cfa3853c736425c7233a8f68814b19636",
+                "reference": "27cb9f7cfa3853c736425c7233a8f68814b19636",
                 "shasum": ""
             },
             "require": {
@@ -2818,7 +2818,7 @@
                 "dump"
             ],
             "support": {
-                "source": "https://github.com/symfony/var-dumper/tree/v5.2.6"
+                "source": "https://github.com/symfony/var-dumper/tree/v5.2.7"
             },
             "funding": [
                 {
@@ -2834,7 +2834,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-03-28T09:42:18+00:00"
+            "time": "2021-04-19T14:07:32+00:00"
         },
         {
             "name": "twig/twig",