v1.149.0

Added

• Self-host the rerun web viewer. Set BENCHER_RERUN_VIEWER_URL to one or more base
  URLs with a {version} placeholder (for example
  /_rerun/web-viewer@{version}/ https://unpkg.com/@rerun-io/web-viewer@{version}/).
  The viewer page imports index.js from the first one that serves it, and the glue and
  the .wasm then come from that same place. The default is unpkg alone.
  python -m bencher.rerun_web_viewer <version> <dir> writes the npm package to
  <dir>/web-viewer@<version>/, checks it against the registry's sha512, and rewrites
  its one extensionless ./re_viewer import so a plain file server can serve it (#1214).