Add link to security policy

sebastianbergmann · sebastianbergmann · commit fe7b8ad5d2dd · 2023-03-14T14:35:01.000+01:00
diff --git a/composer.json b/composer.json
@@ -17,7 +17,8 @@
         }
     ],
     "support": {
-        "issues": "https://github.com/sebastianbergmann/php-code-coverage/issues"
+        "issues": "https://github.com/sebastianbergmann/php-code-coverage/issues",
+        "security": "https://github.com/sebastianbergmann/php-code-coverage/security/policy"
     },
     "config": {
         "platform": {
