### 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_
assert response.status_code == 200
        assert to_str(response.content) == content
    @pytest.mark.only_localstack
    def test_s3_hostname_with_subdomain(self, aws_http_client_factory):
        """
        This particular test validates the fix for localstack#7424
        Moto would still validate with the `host` header if buckets where subdomain based even though in the new ASF
        provider, every request was forwarded by the VirtualHost proxy.
        """
        s3_http_client = aws_http_client_factory("s3", signer_factory=SigV4Auth)
        endpoint_url = _endpoint_url()
        # this 
        resp = s3_http_client.get(endpoint_url)
        assert resp.ok
        assert resp.ok
        assert b"<Bucket" in resp.content
        # the 
        resp = s3_http_client.get(endpoint_url, headers={"host": "aws.test.local"})
        assert resp.ok
        assert b"<Bucket" in resp.content
    @pytest.mark.skip_offline
    @pytest.mark.aws_validated
    @pytest.mark.skip_snapshot_verify(paths=["$..AcceptRanges"])
    def test_s3_lambda_integration(
        self,
        lambda_client,
        create_lambda_function,
        lambda_su_role,
        s3_client,
        s3_create_bucket,