### 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_
Body="error",
            ContentType="text/html",
            ACL="public-read",
        )
        # docu
        # 405 
        req = .post(website_url, data="test")
        assert req.status_code == 405
    @pytest.mark.aws_validated
    @pytest.mark.skipif(
        condition=LEGACY_S3_PROVIDER and not is_aws_cloud(),
        reason="Legacy S3 provider does not provide proper website redirection",
    )
    def test_website_hosting_index_lookup(self, s3_client, s3_create_bucket, snapshot):
        snapshot.add_transformers_list(self._get_static_hosting_transformers(snapshot))
        bucket_name = f"bucket-{short_uid()}"
        s3_create_bucket(Bucket=bucket_name, ACL="public-read")
        s3_client.put_bucket_website(
            Bucket=bucket_name,
            WebsiteConfiguration={
                "IndexDocument": {"Suffix": "index.html"},
            },
        )
        s3_client.put_(
            Bucket=bucket_name,
            Key="index.html",
            Body="index",
            ContentType="text/html",
            ACL="public-read",
        )