### 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.
Payload: Optional[Body]
class RequestProgress(TypedDict, total=False):
    Enabled: Optional[EnableRequestProgress]
class RestoreObjectOutput(TypedDict, total=False):
    RequestCharged: Optional[RequestCharged]
    RestoreOutputPath: Optional[RestoreOutputPath]
    StatusCode: Optional[RestoreObjectOutputStatusCode]
class SelectParameters(TypedDict, total=False):
    InputSerialization: InputSerialization
    ExpressionType: ExpressionType
    Expression: Expression
    OutputSerialization: OutputSerialization
class RestoreRequest(TypedDict, total=False):
    Days: Optional[Days]
    GlacierJobParameters: Optional[GlacierJobParameters]
    Type: Optional[RestoreRequestType]
    Tier: Optional[Tier]
    Description: Optional[Description]
    SelectParameters: Optional[SelectParameters]
    OutputLocation: Optional[OutputLocation]
class RestoreObjectRequest(ServiceRequest):
    Bucket: BucketName
    Key: ObjectKey
    VersionId: Optional[ObjectVersionId]
    RestoreRequest: Optional[RestoreRequest]
    RequestPayer: Optional[RequestPayer]
    ChecksumAlgorithm: Optional[ChecksumAlgorithm]
    ExpectedBucketOwner: Optional[AccountId]
Start = int
class ScanRange(TypedDict, total=False):