Updated docker dependencies.

symfony.lock

@@ -93,9 +93,6 @@
     "egulias/email-validator": {
         "version": "2.1.7"
     },
-    "facebook/webdriver": {
-        "version": "1.6.0"
-    },
     "fig/link-util": {
         "version": "1.0.0"
     },
@@ -234,6 +231,9 @@
     "symfony/cache": {
         "version": "v4.2.3"
     },
+    "symfony/cache-contracts": {
+        "version": "v1.1.5"
+    },
     "symfony/config": {
         "version": "v4.2.3"
     },
@@ -250,9 +250,6 @@
             "./config/bootstrap.php"
         ]
     },
-    "symfony/contracts": {
-        "version": "v1.0.2"
-    },
     "symfony/css-selector": {
         "version": "v4.2.3"
     },
@@ -289,6 +286,9 @@
     "symfony/event-dispatcher": {
         "version": "v4.2.3"
     },
+    "symfony/event-dispatcher-contracts": {
+        "version": "v1.1.5"
+    },
     "symfony/expression-language": {
         "version": "v4.2.3"
     },
@@ -332,9 +332,6 @@
             "./src/Kernel.php"
         ]
     },
-    "symfony/http-client": {
-        "version": "v4.3.1"
-    },
     "symfony/http-foundation": {
         "version": "v4.2.3"
     },
@@ -382,9 +379,6 @@
     "symfony/orm-pack": {
         "version": "v1.0.6"
     },
-    "symfony/panther": {
-        "version": "v0.2.0"
-    },
     "symfony/phpunit-bridge": {
         "version": "4.1",
         "recipe": {
@@ -473,6 +467,9 @@
     "symfony/serializer-pack": {
         "version": "v1.0.2"
     },
+    "symfony/service-contracts": {
+        "version": "v1.1.5"
+    },
     "symfony/stopwatch": {
         "version": "v4.2.3"
     },
@@ -506,6 +503,9 @@
             "./translations/.gitignore"
         ]
     },
+    "symfony/translation-contracts": {
+        "version": "v1.1.5"
+    },
     "symfony/twig-bridge": {
         "version": "v4.2.3"
     },