Prepare the next browse release by versioning the package on `main`.

What this PR does:
- bumps `packages/cli/package.json` to `0.9.3`
- updates the browse changelog
- consumes the pending browse changesets

After this PR merges, the `Release` workflow on `main` will publish
`browse@0.9.3` from that exact commit using `pnpm pack` + `npm publish
--provenance`.


<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Prepare the `browse@0.9.3` release by bumping the package version,
updating the changelog, and consuming the pending changeset. On merge,
the Release workflow on `main` will publish via `pnpm pack` + `npm
publish --provenance`; this release also notes the new Docker image at
`ghcr.io/browserbase/browse`.

<sup>Written for commit 32f3a51532d4376de596745e25709c7560b9733c.
Summary will update on new commits.</sup>

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