### 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_
self,
        context: RequestContext,
        request: ListObjectsV2Request,
    ) -> ListObjectsV2Output:
        response: ListObjectsV2Output = call_moto(context)
        encoding_type = request.get("EncodingType")
        if "EncodingType" not in response and encoding_type:
            response["EncodingType"] = encoding_type
        
        if delimiter := response.get("Delimiter"):
            delimiter = delimiter.strip()
            if delimiter != "/":
                response["Delimiter"] = quote(delimiter)
        if "BucketRegion" not in response:
            moto_backend = get_moto_s3_backend(context)
            bucket = get_bucket_from_moto(moto_backend, bucket=request["Bucket"])
            response["BucketRegion"] = bucket.region_name
        return response
    @handler("HeadObject", expand=False)
    def head_object(