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_
            
expiry_date = "Wed, 21 Oct 2015 07:28:00 GMT"
        presigned_client = _s3_client_custom_config(
            Config(signature_version=signature_version), endpoint_url=_endpoint_url()
        )
        url = presigned_client.generate_presigned_url(
            "get_",
            Params={
                "Bucket": s3_bucket,
                "Key": _key,
                "ResponseCacheControl": "max-age=74",
                "ResponseContentDisposition": 'attachment; filename="foo.jpg"',
                "ResponseContentEncoding": "identity",
                "ResponseContentLanguage": "de-DE",
                "ResponseContentType": "image/jpeg",
                "ResponseExpires": expiry_date,
            },
        )
        response = .get(url, verify=False)
        assert response.status_code == 200
        headers = response.headers
        assert headers["cache-control"] == "max-age=74"
        assert headers["content-disposition"] == 'attachment; filename="foo.jpg"'
        assert headers["content-encoding"] == "identity"
        assert headers["content-language"] == "de-DE"
        assert headers["content-type"] == "image/jpeg"
        # Note
        possible_date_formats = ["2015-10-21T07:28:00Z", expiry_date]
        assert headers["expires"] in possible_date_formats
    @pytest.mark.aws_validated
    def test_s3_copy_md5(self, s3_bucket, snapshot, s3_presigned_client, monkeypatch, aws_client):