### 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.
Prefix: Optional[Prefix]
    Tag: Optional[Tag]
    And: Optional[AnalyticsAndOperator]
class AnalyticsConfiguration(TypedDict, total=False):
    Id: AnalyticsId
    Filter: Optional[AnalyticsFilter]
    StorageClassAnalysis: StorageClassAnalysis
AnalyticsConfigurationList = List[AnalyticsConfiguration]
Body = bytes
CreationDate = datetime
class Bucket(TypedDict, total=False):
    Name: Optional[BucketName]
    CreationDate: Optional[CreationDate]
class NoncurrentVersionExpiration(TypedDict, total=False):
    NoncurrentDays: Optional[Days]
    NewerNoncurrentVersions: Optional[VersionCount]
class NoncurrentVersionTransition(TypedDict, total=False):
    NoncurrentDays: Optional[Days]
    StorageClass: Optional[TransitionStorageClass]
    NewerNoncurrentVersions: Optional[VersionCount]
NoncurrentVersionTransitionList = List[NoncurrentVersionTransition]
Date = datetime
class Transition(TypedDict, total=False):
    Date: Optional[Date]
    Days: Optional[Days]
    StorageClass: Optional[TransitionStorageClass]
TransitionList = List[Transition]
ObjectSizeLessThanBytes = int
ObjectSizeGreaterThanBytes = int
class LifecycleRuleAndOperator(TypedDict, total=False):