[core] Remote lookup file should overwrite old orphan file

Author: JingsongLi

paimon-core/src/main/java/org/apache/paimon/mergetree/lookup/RemoteLookupFileManager.java

@@ -75,7 +75,7 @@ public DataFileMeta genRemoteLookupFile(DataFileMeta file) throws IOException {
         String remoteSstName = lookupLevels.newRemoteSst(file, length);
         Path sstFile = remoteSstPath(file, remoteSstName);
         try (FileInputStream is = new FileInputStream(lookupFile.localFile());
-                PositionOutputStream os = fileIO.newOutputStream(sstFile, false)) {
+                PositionOutputStream os = fileIO.newOutputStream(sstFile, true)) {
             IOUtils.copy(is, os);
         } catch (IOException e) {
             throw new RuntimeException(e);