### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

The Complete Multipart Upload operation generates the **InternalError** error for non-existing uploads.

### Expected Behavior

The Complete Multipart Upload operation generates the **NoSuchUpload** error for non-existing uploads.

### How are you starting LocalStack?

With a `docker run` command

### Steps To Reproduce

    docker run -it --rm -p 4566:4566 localstack/localstack

    aws s3api create-bucket --bucket test --endpoint-url http://localhost:4566 --create-bucket-configuration LocationConstraint=us-west-2

    aws s3api complete-multipart-upload --bucket test --endpoint-url http://localhost:4566 --key test --upload-id test

### Environment

```markdown
- OS: Windows 11
- LocalStack: latest
```


### Anything else?

The Abort Multipart Upload operation works correctly in LocalStack.

The official documentation: https://docs.aws.amazon.com/AmazonS3/latest/API/API_CompleteMultipartUpload.html
Amazon S3 throws the correct **NoSuchUpload** error for both Abort and Complete operations.
Grants: Optional[Grants]
    Owner: Optional[Owner]
class AccessControlTranslation(TypedDict, total=False):
    Owner: OwnerOverride
AllowedHeaders = List[AllowedHeader]
AllowedMethods = List[AllowedMethod]
AllowedOrigins = List[AllowedOrigin]
class Tag(TypedDict, total=False):
    Key: ObjectKey
    Value: Value
TagSet = List[Tag]
class AnalyticsAndOperator(TypedDict, total=False):
    Prefix: Optional[Prefix]
    Tags: Optional[TagSet]
class AnalyticsS3BucketDestination(TypedDict, total=False):
    Format: AnalyticsS3ExportFileFormat
    BucketAccountId: Optional[AccountId]
    Bucket: BucketName
    Prefix: Optional[Prefix]
class AnalyticsExportDestination(TypedDict, total=False):
    S3BucketDestination: AnalyticsS3BucketDestination
class StorageClassAnalysisDataExport(TypedDict, total=False):
    OutputSchemaVersion: StorageClassAnalysisSchemaVersion
    Destination: AnalyticsExportDestination
class StorageClassAnalysis(TypedDict, total=False):
    DataExport: Optional[StorageClassAnalysisDataExport]
class AnalyticsFilter(TypedDict, total=False):