Update metadata.json

metadata.json

@@ -9,7 +9,7 @@
   "issues_url": "https://github.com/NTTCom-MS/eyp-postgresql/issues",
   "dependencies": [
     {"name":"puppetlabs/stdlib","version_requirement":">= 4.12.0 < 8.6.0"},
-    {"name":"puppetlabs/concat","version_requirement":">= 1.2.3 < 9.9.9"},
+    {"name":"puppetlabs/concat","version_requirement":">= 1.2.3 < 6.2.0"},
     {"name":"eyp/systemd","version_requirement":">= 0.1.35 < 0.4.0"},
     {"name":"eyp/python","version_requirement":">= 0.1.0 < 0.2.0"},
     {"name":"eyp/lvm","version_requirement":">= 0.1.0 < 0.2.0"},