ci(release-please): Fix 'extra-files' config

Author: matz3

release-please-config.json

@@ -62,14 +62,14 @@
 					"section": "Release",
 					"hidden": true
 				}
+			],
+			"extra-files": [
+				{
+					"type": "json",
+					"path": "server.json",
+					"jsonpath": "$..version"
+				}
 			]
-		},
-		"extra-files": [
-			{
-				"type": "json",
-				"path": "server.json",
-				"jsonpath": "$..version"
-			}
-		]
+		}
 	}
 }