Bump symfony/process from 3.4.26 to 3.4.27

Bumps [symfony/process](https://github.com/symfony/process) from 3.4.26 to 3.4.27.
- [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/v3.4.26...v3.4.27

)

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

composer.lock

@@ -2951,7 +2951,7 @@
         },
         {
             "name": "symfony/process",
-            "version": "v3.4.26",
+            "version": "v3.4.27",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/process.git",