### 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, sts_client, s3_create_bucket_with_client, patch_s3_skip_signature_validation_false
    ):
        bucket_name = f"bucket-{short_uid()}"
        key_name = "key"
        response = sts_client.get_session_token()
        if not is_aws_cloud():
            # moto 
            # unti
            response["Credentials"]["AccessKeyId"] = "test"
            response["Credentials"]["SecretAccessKey"] = "test"
        client = boto3.client(
            "s3",
            config=Config(signature_version="s3v4"),
            endpoint_url=_endpoint_url(),
            aws_access_key_id=response["Credentials"]["AccessKeyId"],
            aws_secret_access_key=response["Credentials"]["SecretAccessKey"],
            aws_session_token=response["Credentials"]["SessionToken"],
        )
        s3_create_bucket_with_client(s3_client=client, Bucket=bucket_name)
        client.put_(Body="test-value", Bucket=bucket_name, Key=key_name)
        presigned_url = client.generate_presigned_url(
            ClientMethod="get_",
            Params={"Bucket": bucket_name, "Key": key_name},
            ExpiresIn=600,
        )
        response = .get(presigned_url)
        assert response._content == b"test-value"
    @pytest.mark.aws_validated
    @pytest.mark.parametrize("signature_version", ["s3", "s3v4"])
    def test_s3_get_response_header_overrides(