Make minio package support legacy MD5 checksum (#23768)

A feedback from discord:
1090185427

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.

I guess this needs to be backported because IIRC we 1.19 and 1.20 are
using similar minio package.


The minio package code for SendContentMD5 looks like this:

<details>

<img width="755" alt="image"
src="https://user-images.githubusercontent.com/2114189/228186768-4f2f6f67-62b9-4aee-9251-5af714ad9674.png">

</details>

docs/content/doc/administration/config-cheat-sheet.en-us.md

@@ -855,6 +855,7 @@ Default templates for project boards:
 - `MINIO_BASE_PATH`: **attachments/**: Minio base path on the bucket only available when STORAGE_TYPE is `minio`
 - `MINIO_USE_SSL`: **false**: Minio enabled ssl only available when STORAGE_TYPE is `minio`
 - `MINIO_INSECURE_SKIP_VERIFY`: **false**: Minio skip SSL verification available when STORAGE_TYPE is `minio`
+- `MINIO_CHECKSUM_ALGORITHM`: **default**: Minio checksum algorithm: `default` (for MinIO or AWS S3) or `md5` (for Cloudflare or Backblaze)
 
 ## Log (`log`)