### 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.
Enabled = "Enabled"
    Disabled = "Disabled"
class RequestCharged(str):
    requester = "requester"
class RequestPayer(str):
    requester = "requester"
class RestoreRequestType(str):
    SELECT = "SELECT"
class ServerSideEncryption(str):
    AES256 = "AES256"
    aws_kms = "aws:kms"
class SseKmsEncryptedObjectsStatus(str):
    Enabled = "Enabled"
    Disabled = "Disabled"
class StorageClass(str):
    STANDARD = "STANDARD"
    REDUCED_REDUNDANCY = "REDUCED_REDUNDANCY"
    STANDARD_IA = "STANDARD_IA"
    ONEZONE_IA = "ONEZONE_IA"
    INTELLIGENT_TIERING = "INTELLIGENT_TIERING"
    GLACIER = "GLACIER"
    DEEP_ARCHIVE = "DEEP_ARCHIVE"
    OUTPOSTS = "OUTPOSTS"
    GLACIER_IR = "GLACIER_IR"
    SNOW = "SNOW"
class StorageClassAnalysisSchemaVersion(str):