Correct dev version tags

composer.json

@@ -39,12 +39,12 @@
     "drupal/smtp": "1.0-alpha1",
     "drupal/video": "1.2",
     "drupal/videojs": "1.0",
-    "drupal/metatag": "dev-1.0.x",
-    "drupal/slack": "dev-1.0.x",
+    "drupal/metatag": "1.x-dev",
+    "drupal/slack": "1.0.x-dev",
     "drupal/honeypot": "1.23",
-    "drupal/maillog": "dev-1.0.x",
-    "drupal/contact_storage": "dev-1.0.x",
-    "drupal/field_group": "dev-1.0.x",
+    "drupal/maillog": "1.x-dev",
+    "drupal/contact_storage": "1.0.x-dev",
+    "drupal/field_group": "1.x-dev",
     "drupal/ds": "2.4"
   },
   "require-dev": {