Fix bug when default version is string

package-list.yaml

@@ -37,8 +37,8 @@ configurations:
     packages:
       org.jetbrains.kotlinx:kotlinx-datetime: "0.4.0"
       com.expediagroup:
-        _default: ["latest", "stable"]
-        graphql-kotlin-ktor-server: ["latest"]
+        _default: "stable"
+        graphql-kotlin-ktor-server: ["default", "latest"]
         graphql-kotlin-client: []
         graphql-kotlin-client-generator: []
 

sync/src/config/packages.py

@@ -40,7 +40,10 @@ def handle_packages(section) -> list[Package]:
         elif isinstance(section[entry], dict):
             group_id = entry
             group_section = section[entry]
+
             default_versions = group_section.get('_default', [])
+            if not isinstance(default_versions, list):
+                default_versions = [default_versions]
 
             for artifact_id, value in group_section.items():
                 if not artifact_id.startswith('_'):