Bump symfony/process from 3.4.16 to 3.4.17

Bumps [symfony/process](https://github.com/symfony/process) from 3.4.16 to 3.4.17.
- [Release notes](https://github.com/symfony/process/releases)
- [Changelog](https://github.com/symfony/process/blob/master/CHANGELOG.md)
- [Commits](https://github.com/symfony/process/compare/v3.4.16...v3.4.17

)

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

composer.lock

@@ -2384,16 +2384,16 @@
         },
         {
             "name": "symfony/process",
-            "version": "v3.4.16",
+            "version": "v3.4.17",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/process.git",
-                "reference": "8b87aca97f341d65dee430c60863f2442605c88b"
+                "reference": "1dc2977afa7d70f90f3fefbcd84152813558910e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/process/zipball/8b87aca97f341d65dee430c60863f2442605c88b",
-                "reference": "8b87aca97f341d65dee430c60863f2442605c88b",
+                "url": "https://api.github.com/repos/symfony/process/zipball/1dc2977afa7d70f90f3fefbcd84152813558910e",
+                "reference": "1dc2977afa7d70f90f3fefbcd84152813558910e",
                 "shasum": ""
             },
             "require": {
@@ -2429,7 +2429,7 @@
             ],
             "description": "Symfony Process Component",
             "homepage": "https://symfony.com",
-            "time": "2018-09-08T13:15:14+00:00"
+            "time": "2018-10-02T12:28:39+00:00"
         },
         {
             "name": "theseer/tokenizer",