Update base minio image
Created by: andreeleuterio
This patches CVE-2022-1271 and closes https://github.com/sourcegraph/security-issues/issues/277. Changelog: https://github.com/minio/minio/compare/RELEASE.2022-05-08T23-50-31Z...RELEASE.2022-08-02T23-59-16Z
Test plan
CI checks