dev/release: stage updates Install component in about
Created by: keegancsmith
The about repository had a change which moved the version string from website/src/components/GetStarted.tsx
to website/src/components/Install/index.tsx
in https://github.com/sourcegraph/about/pull/5149. Without this update the stage command fails (and is currently failing while I am doing this release).
Test Plan: running stage command with this commit and it works.