autogen: add v2.3.0 to version.schema.json

[skip ci]

Author: ory-bot

.schema/version.schema.json

@@ -2,6 +2,23 @@
     "$id": "https://github.com/ory/hydra/.schema/versions.config.schema.json",
     "$schema": "http://json-schema.org/draft-07/schema#",
     "oneOf": [
+        {
+            "allOf": [
+                {
+                    "properties": {
+                        "version": {
+                            "const": "v2.3.0"
+                        }
+                    },
+                    "required": [
+                        "version"
+                    ]
+                },
+                {
+                    "$ref": "https://raw.githubusercontent.com/ory/hydra/v2.3.0/.schema/config.schema.json"
+                }
+            ]
+        },
         {
             "allOf": [
                 {