Release v2.9.0

What's Changed

• Make SdkToProto and ProtoToSDK public by @pingsutw in #758
• fix(doc): the DataAs doc referenced an unknown "data" argument by @owulveryck in #765
• fix http result errors by wrapping the upstream error, allowing for isNack by @n3wscott and @sbgreene1307 in #764

New Contributors

• @pingsutw made their first contribution in #758
• @owulveryck made their first contribution in #765
• @sbgreene1307 made their first contribution in #764

Full Changelog: v2.8.0...v2.9.0