### 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.
ARCHIVE_ACCESS = "ARCHIVE_ACCESS"
    DEEP_ARCHIVE_ACCESS = "DEEP_ARCHIVE_ACCESS"
class IntelligentTieringStatus(str):
    Enabled = "Enabled"
    Disabled = "Disabled"
class InventoryFormat(str):
    CSV = "CSV"
    ORC = "ORC"
    Parquet = "Parquet"
class InventoryFrequency(str):
    Daily = "Daily"
    Weekly = "Weekly"
class InventoryIncludedObjectVersions(str):
    All = "All"
    Current = "Current"
class InventoryOptionalField(str):
    Size = "Size"
    LastModifiedDate = "LastModifiedDate"
    StorageClass = "StorageClass"
    ETag = "ETag"
    IsMultipartUploaded = "IsMultipartUploaded"
    ReplicationStatus = "ReplicationStatus"
    EncryptionStatus = "EncryptionStatus"
    ObjectLockRetainUntilDate = "ObjectLockRetainUntilDate"
    ObjectLockMode = "ObjectLockMode"
    ObjectLockLegalHoldStatus = "ObjectLockLegalHoldStatus"
    IntelligentTieringAccessTier = "IntelligentTieringAccessTier"
    BucketKeyStatus = "BucketKeyStatus"
    ChecksumAlgorithm = "ChecksumAlgorithm"
class JSONType(str):