### 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_
response["ETagHeader"] = key.etag
        if response["StatusCode"] == 303:
            
            try:
                redirect = _create_redirect_for_post_request(
                    base_redirect=context.request.form["success_action_redirect"],
                    bucket=bucket,
                    key=key_name,
                    etag=key.etag,
                )
                response["LocationHeader"] = redirect
            except ValueError:
                
                response["StatusCode"] = 204
        response["LocationHeader"] = response.get(
            "LocationHeader", f"{get_full_default_bucket_location(bucket)}{key_name}"
        )
        if bucket in self.get_store().bucket_versioning_status:
            response["VersionId"] = key.version_id
        self._notify(context, key_name=key_name)
        if context.request.form.get("success_action_status") != "201":
            return response
        response["ETag"] = key.etag
        response["Bucket"] = bucket
        response["Key"] = key_name
        response["Location"] = response["LocationHeader"]
        return response
    @handler("GetObjectAttributes", expand=False)
    def get_object_attributes(