As reported in https://github.com/localstack/localstack/issues/6659#issuecomment-1630932643_, `HeadObject` does not respect `ChecksumMode`. 


```shell
at 09:31:57 ➜ AWS_DEFAULT_REGION=us-west-1 aws --endpoint-url=http://localhost:4566 s3api create-bucket --bucket test-bucket --create-bucket-configuration LocationConstraint=us-west-1
{
    "Location": "http://test-bucket.s3.localhost.localstack.cloud:4566/"
}

at 09:32:13 ➜ aws --endpoint-url=http://localhost:4566 s3api put-object --bucket test-bucket --key file.json --body README.md --checksum-algorithm SHA256
{
    "ETag": "\"4bb2f1387449d690bff6336ea255909c\"",
    "ChecksumSHA256": "bzOikXXMUqRTCrpVq7Pt7LjJ0fjR3ccUfM19S/gnfqA="
}

# SHA256 missing here
at 09:32:20 ➜ aws --endpoint-url=http://localhost:4566 s3api head-object --bucket test-bucket --key file.json --checksum-mode Enabled
{
    "AcceptRanges": "bytes",
    "LastModified": "2023-07-11T13:32:15+00:00",
    "ContentLength": 1455,
    "ETag": "\"4bb2f1387449d690bff6336ea255909c\"",
    "ContentType": "binary/octet-stream",
    "Metadata": {}
}
```

Note the equivalent response from S3 actual includes the SHA256 value

```shell
at 10:21:23 ➜ aws s3api head-object --bucket test-bucket --key file.json --checksum-mode Enabled
{
    "AcceptRanges": "bytes",
    "Expiration": "expiry-date=\"Thu, 13 Jul 2023 00:00:00 GMT\", rule-id=\"all\"",
    "LastModified": "2023-07-11T14:21:09+00:00",
    "ContentLength": 1956,
    "ChecksumSHA256": "bj7fqCqtaF95M1ULwQRDJuHbL/Xd9NVMH6pua9OINcc=",
    "ETag": "\"f4be535d45019a4408dd5369986919f8\"",
    "ContentEncoding": "",
    "ContentType": "binary/octet-stream",
   
    "Metadata": {},
    
}
```

_Originally posted by @bdurrani in https://github.com/localstack/localstack/issues/6659#issuecomment-1630932643_
            
aws_client.s3.put_bucket_logging(
                Bucket=bucket_name, BucketLoggingStatus=bucket_logging_status
            )
        snapshot.match("put-bucket-logging-non-existent-bucket", e.value.response)
        assert e.value.response["Error"]["TargetBucket"] == nonexistent_target_bucket
class TestS3MultiAccounts:
    @pytest.fixture
    def primary_client(self, aws_client):
        return aws_client.s3
    @pytest.fixture
    def secondary_client(self, aws_client_factory):
        """
        Create a boto client with secondary test credentials and region.
        """
        return aws_client_factory.get_client(
            "s3",
            aws_access_key_id=SECONDARY_TEST_AWS_ACCESS_KEY_ID,
            aws_secret_access_key=SECONDARY_TEST_AWS_SECRET_ACCESS_KEY,
            region_name=SECONDARY_TEST_AWS_REGION_NAME,
        )
    def test_shared_bucket_namespace(self, primary_client, secondary_client):
        # Ensu
        primary_client.create_bucket(Bucket="foo")
        with pytest.raises(ClientError) as exc:
            secondary_client.create_bucket(
                Bucket="foo",
                CreateBucketConfiguration={"LocationConstraint": SECONDARY_TEST_AWS_REGION_NAME},
            )
        exc.match("BucketAlreadyExists")
    def test_cross_account_access(self, primary_client, secondary_client):