[0.21.0] Update rustfs to 1.0.0-rc.5-preview.2 Full Changelog fix(api): preserve server-side storage error surface by @houseme in #6753 fix(deps): move off the yanked chacha20 0.10.1 by @overtrue in #6768 fix(tier): validate outbound URLs for all warm backend providers by @overtrue in #6764 fix(s3): round-trip null-version delete-marker identity by @overtrue in #6765 fix(startup): never panic when the system CA bundle is absent by @overtrue in #6769 perf(storage): optimize small-object GET/PUT paths by @houseme in #6770 fix(s3): preserve atomic 1 MiB conditional writes by @overtrue in #6798 feat(nix): add NixOS service module and client package by @houseme in #6856 feat(replication): support temporary target credentials by @cxymds in #6860 feat(s3select): support compressed CSV and JSON input by @GatewayJ in #6915