Make minio package support legacy MD5 checksum (#23768) (#23770)
Backport #23768 (no source code conflict, only some unrelated
docs/test-ini conflicts)
Some storages like:
* https://developers.cloudflare.com/r2/api/s3/api/
* https://www.backblaze.com/b2/docs/s3_compatible_api.html
They do not support "x-amz-checksum-algorithm" header
But minio recently uses that header with CRC32C by default. So we have
to tell minio to use legacy MD5 checksum.