### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

copyObject and putObject (and perhaps other requests) requests are accepted and do not return an error when an SSE KMS key is specified. 

### Expected Behavior

The error which should be returned is KMS.NotFoundException.

### How are you starting LocalStack?

Custom (please describe below)

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

    Localstack testcontainers 

#### Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

   Call copyObject/putObject via latest version using AWS SDK V2 and specific a ssekmsKeyId.

```java
final var copyObjectRequestBuilder =
        CopyObjectRequest.builder()
            .serverSideEncryption(ServerSideEncryption.AWS_KMS)
            .ssekmsKeyId("NON-EXISTENT KMS KEY")
            .sourceBucket(sourceBucketName)
            .sourceKey(sourceKey)
            .destinationBucket(destinationBucket)
            .destinationKey(destinationKey);
final var copyObjectResponse = sourceRegionS3Client.copyObject(copyObjectRequest); // Error should be thrown here but localstack does not return an error
```

### Environment

```markdown
- OS: MacOS 13.0
- LocalStack: Latest (v1.2.0)
```


### Anything else?

_No response_
key = f"Checksum{checksum_algorithm.upper()}"
    checksum = request.get(key)
    
    match checksum_algorithm:
        case ChecksumAlgorithm.CRC32:
            calculated_checksum = checksum_crc32(data)
        case ChecksumAlgorithm.CRC32C:
            calculated_checksum = checksum_crc32c(data)
        case ChecksumAlgorithm.SHA1:
            calculated_checksum = hash_sha1(data)
        case ChecksumAlgorithm.SHA256:
            calculated_checksum = hash_sha256(data)
        case _:
            
            raise InvalidRequest("The value specified in the x-amz-trailer header is not supported")
    if calculated_checksum != checksum:
        raise InvalidRequest(
            f"Value for x-amz-checksum-{checksum_algorithm.lower()} header is invalid."
        )
def is_key_expired(key_object: Union[FakeKey, FakeDeleteMarker]) -> bool:
    if not key_object or isinstance(key_object, FakeDeleteMarker) or not key_object._expiry:
        return False
    return key_object._expiry <= datetime.datetime.now(key_object._expiry.tzinfo)
def is_bucket_name_valid(bucket_name: str) -> bool: