Bump symfony/debug from 3.4.22 to 3.4.23

Bumps [symfony/debug](https://github.com/symfony/debug) from 3.4.22 to 3.4.23.
- [Release notes](https://github.com/symfony/debug/releases)
- [Changelog](https://github.com/symfony/debug/blob/master/CHANGELOG.md)
- [Commits](https://github.com/symfony/debug/compare/v3.4.22...v3.4.23

)

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

composer.lock

@@ -2823,16 +2823,16 @@
         },
         {
             "name": "symfony/debug",
-            "version": "v3.4.22",
+            "version": "v3.4.23",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
-                "reference": "667a26c4dd6bc75c67f06bc9bcd015bdecc7cbb8"
+                "reference": "8d8a9e877b3fcdc50ddecf8dcea146059753f782"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/debug/zipball/667a26c4dd6bc75c67f06bc9bcd015bdecc7cbb8",
-                "reference": "667a26c4dd6bc75c67f06bc9bcd015bdecc7cbb8",
+                "url": "https://api.github.com/repos/symfony/debug/zipball/8d8a9e877b3fcdc50ddecf8dcea146059753f782",
+                "reference": "8d8a9e877b3fcdc50ddecf8dcea146059753f782",
                 "shasum": ""
             },
             "require": {
@@ -2875,7 +2875,7 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2019-01-25T10:19:25+00:00"
+            "time": "2019-02-24T15:45:11+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",