[Security\Guard] bump lowest version of security-core

nicolas-grekas · nicolas-grekas · commit 93cfd5b2a037 · 2019-02-17T23:00:14.000+01:00
diff --git a/src/Symfony/Component/Security/Guard/composer.json b/src/Symfony/Component/Security/Guard/composer.json
@@ -17,7 +17,7 @@
     ],
     "require": {
         "php": "^5.5.9|>=7.0.8",
-        "symfony/security-core": "~2.8|~3.0|~4.0",
+        "symfony/security-core": "~3.4.22|^4.2.3",
         "symfony/security-http": "^3.3.13|~4.0"
     },
     "require-dev": {
