Merge branch '3.4' into 4.2

* 3.4:
  [Console] Fix command testing with missing inputs
  [Validator] Sync no/nb translation files
  [Translation] Added a script to display the status of translations
  [Validator] Added missing translations for Norwegian (\"no\") locale #30179
  [Security\Guard] bump lowest version of security-core

Author: nicolas-grekas

Guard/composer.json

@@ -17,7 +17,7 @@
     ],
     "require": {
         "php": "^7.1.3",
-        "symfony/security-core": "~3.4|~4.0",
+        "symfony/security-core": "~3.4.22|^4.2.3",
         "symfony/security-http": "~3.4|~4.0"
     },
     "require-dev": {