Bump symfony/debug from 3.4.28 to 3.4.29

Bumps [symfony/debug](https://github.com/symfony/debug) from 3.4.28 to 3.4.29.
- [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/v3.4.28...v3.4.29

)

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

composer.lock

@@ -2778,16 +2778,16 @@
         },
         {
             "name": "symfony/debug",
-            "version": "v3.4.28",
+            "version": "v3.4.29",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
-                "reference": "671fc55bd14800668b1d0a3708c3714940e30a8c"
+                "reference": "1172dc1abe44dfadd162239153818b074e6e53bf"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/debug/zipball/671fc55bd14800668b1d0a3708c3714940e30a8c",
-                "reference": "671fc55bd14800668b1d0a3708c3714940e30a8c",
+                "url": "https://api.github.com/repos/symfony/debug/zipball/1172dc1abe44dfadd162239153818b074e6e53bf",
+                "reference": "1172dc1abe44dfadd162239153818b074e6e53bf",
                 "shasum": ""
             },
             "require": {
@@ -2830,7 +2830,7 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2019-05-18T13:32:47+00:00"
+            "time": "2019-06-18T21:26:03+00:00"
         },
         {
             "name": "symfony/polyfill-ctype",