fix: s3 link error when filename renaming enable (#91)

fixes #90
请测试 `上传时重命名文件方式` 选项为**非**保留原文件名时，是否能正常关联s3文件
![image](https://github.com/halo-dev/plugin-s3/assets/28662535/22ab0467-60bd-4c4c-a486-38bc922b7f37)

```release-note
当上传时文件重命名功能开启时关联S3文件错误
```

src/main/java/run/halo/s3os/S3LinkServiceImpl.java

@@ -184,7 +184,7 @@ public Mono<LinkResult.LinkResultItem> addAttachmentRecord(String policyName,
  .map(headObjectResponse -> {
  var objectDetail = new S3OsAttachmentHandler.ObjectDetail(
  new S3OsAttachmentHandler.UploadState(properties,
- FileNameUtils.extractFileNameFromS3Key(objectKey)),
+ FileNameUtils.extractFileNameFromS3Key(objectKey), false),
  headObjectResponse);
  return handler.buildAttachment(properties, objectDetail);
  })

src/main/java/run/halo/s3os/S3OsAttachmentHandler.java

@@ -304,7 +304,7 @@ ByteBuffer deepCopy(ByteBuffer src) {
  Mono<ObjectDetail> upload(UploadContext uploadContext, S3OsProperties properties) {
  return Mono.using(() -> buildS3Client(properties),
  client -> {
- var uploadState = new UploadState(properties, uploadContext.file().filename());
+ var uploadState = new UploadState(properties, uploadContext.file().filename(), true);
 
  var content = uploadContext.file().content();
 
@@ -492,12 +492,14 @@ static class UploadState {
  String objectKey;
  boolean needRemoveMapKey = false;
 
- public UploadState(S3OsProperties properties, String fileName) {
+ public UploadState(S3OsProperties properties, String fileName, boolean needRandomJudge) {
  this.properties = properties;
  this.originalFileName = fileName;
 
- fileName = FileNameUtils.getRandomFilename(fileName,
+ if (needRandomJudge) {
+ fileName = FileNameUtils.getRandomFilename(fileName,
  properties.getRandomStringLength(), properties.getRandomFilenameMode());
+ }
 
  this.fileName = fileName;
  this.objectKey = properties.getObjectName(fileName);