Bump @observablehq/framework from 1.10.1 to 1.13.0

Bumps [@observablehq/framework](https://github.com/observablehq/framework) from 1.10.1 to 1.13.0.
- [Release notes](https://github.com/observablehq/framework/releases)
- [Commits](observablehq/framework@v1.10.1...v1.13.0)

---
updated-dependencies:
- dependency-name: "@observablehq/framework"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>