feat: export event-stream types

resolves h3js#760

chore(release): v1.11.0

feat: websocket support (h3js#671)

fix(proxy): ignore incoming `accept` header (h3js#646)

chore: update lockfile

chore(deps): update devdependency @types/supertest to v6 (h3js#600)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

chore: update lockfile

chore(deps): update all non-major dependencies (h3js#528)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

chore: update lockfile

refactor: rename `beforeResponse` to `onBeforeResponse`