The MinIO client isn't redirecting to the correct AWS endpoint if a
non-default data center is used.
In my use case I created an AWS bucket at `eu-central-1` region. Because
of the missing region initialization of the client the default
`us-east-1` API endpoint is used returning a `301 Moved Permanently`
response that's not handled properly by MinIO client. This in return
aborts using S3 storage on AWS as the `BucketExists()` call will fail
with the http moved error.
MinIO client trace shows the issue:
```text
---------START-HTTP---------
HEAD / HTTP/1.1
Host: xxxxxxxxxxx-prod-gitea-data.s3.dualstack.us-east-1.amazonaws.com
User-Agent: MinIO (windows; amd64) minio-go/v7.0.61
Authorization: AWS4-HMAC-SHA256 Credential=**REDACTED**/20230809/accesspoint.eu-central-1/s3/aws4_request, SignedHeaders=host;x-amz-content-sha256;x-amz-date, Signature=**REDACTED**
X-Amz-Content-Sha256: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
X-Amz-Date: 20230809T141143Z
HTTP/1.1 301 Moved Permanently
Connection: close
Content-Type: application/xml
Date: Wed, 09 Aug 2023 14:11:43 GMT
Server: AmazonS3
X-Amz-Bucket-Region: eu-central-1
X-Amz-Id-2: UK7wfeYi0HcTcytNvQ3wTAZ5ZP1mOSMnvRZ9Fz4xXzeNsS47NB/KfFx2unFxo3L7XckHpMNPPVo=
X-Amz-Request-Id: S1V2MJV8SZ11GEVN
---------END-HTTP---------
```
Co-authored-by: Heiko Besemann <heiko.besemann@qbeyond.de>
3c91b09c19