fix PropertyListSerializationTest file handle leak on Windows

Parser(File) left the FileInputStream open after parsing, preventing
@tempdir cleanup on Windows (file locked by another process).
Open the stream explicitly in propertyListFromFile so it is closed
via try-with-resources after parsing completes.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: andrus

modeler/cayenne-wocompat/src/main/java/org/apache/cayenne/wocompat/PropertyListSerialization.java

@@ -63,7 +63,15 @@ public static Object propertyListFromFile(File f, PlistDataStructureFactory fact
 			throw new FileNotFoundException("No such file: " + f);
 		}
 
-		return new Parser(f, factory).propertyList();
+		// Use explicit stream so it is closed after parsing; Parser(File) leaves the stream open,
+		// which prevents temp-directory cleanup on Windows.
+		try (InputStream in = new java.io.FileInputStream(f)) {
+			return new Parser(in, factory).propertyList();
+		} catch (FileNotFoundException e) {
+			throw e;
+		} catch (IOException e) {
+			throw new CayenneRuntimeException("Error reading plist: " + f, e);
+		}
 	}
 
 	/**