[release/v1.28.x-0.49bx] Prepare release 1.28.1/0.49b1 - #4262

[release/v1.28.x-0.49bx] Prepare release 1.28.1/0.49b1#4262

lzchen merged 6 commits into

release/v1.28.x-0.49bxopen-telemetry/opentelemetry-python:release/v1.28.x-0.49bxfrom

opentelemetrybot/prepare-release-1.28.1-0.49b1open-telemetry/opentelemetry-python:opentelemetrybot/prepare-release-1.28.1-0.49b1Copy head branch name to clipboard