### 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_
# ju
        # sa
        # ht
        snapshot.add_transformer(snapshot.transform.key_value("Resource"))
        # pu
        policy = {
            "Version": "2012-10-17",
            "Statement": [
                {
                    "Action": "s3:GetObject",
                    "Effect": "Allow",
                    "Resource": f"arn:aws:s3:::{s3_bucket}/*",
                    "Principal": {"AWS": "*"},
                }
            ],
        }
        response = s3_client.put_bucket_policy(Bucket=s3_bucket, Policy=json.dumps(policy))
        # as
        snapshot.match("put-bucket-policy", response)
        # re
        response = s3_client.get_bucket_policy(Bucket=s3_bucket)
        snapshot.match("get-bucket-policy", response)
        assert policy == json.loads(response["Policy"])
    @pytest.mark.aws_validated
    @pytest.mark.xfail(
        condition=LEGACY_S3_PROVIDER,
        reason="see https://github.com/localstack/localstack/issues/5769",
    )
    def test_put__tagging_empty_list(self, s3_client, s3_bucket, snapshot):