### 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_
data="something",
            verify=False,
            headers={
                "Origin": "https://localhost:4201",
                "Content-Type": "application/pdf",
            },
        )
        assert result.status_code == 200
        snapshot.match("raw-response-headers-4", dict(result.headers))
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(
        paths=[
            "$..Access-Control-Allow-Headers",
            "$..Connection",
            "$..Location",
            "$..Vary",
            "$..Content-Type",
            "$..x-amzn-requestid",
            "$..last-modified",
            "$..accept-ranges",
            "$..content-language",
            "$..content-md5",
            "$..content-type",
            "$..x-amz-version-id",
            "$..Last-Modified",
            "$..Accept-Ranges",
            "$..raw-response-headers-2.Access-Control-Allow-Credentials",
        ]
    )
    def test_cors_configurations(self, s3_client, s3_create_bucket, monkeypatch, snapshot):