build(deps): bump @observablehq/framework from 1.13.0 to 1.13.1

Bumps [@observablehq/framework](https://github.com/observablehq/framework) from 1.13.0 to 1.13.1.
- [Release notes](https://github.com/observablehq/framework/releases)
- [Commits](observablehq/framework@v1.13.0...v1.13.1)

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

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

package.json

@@ -9,7 +9,7 @@
     "observable": "observable"
   },
   "dependencies": {
-    "@observablehq/framework": "^1.13.0"
+    "@observablehq/framework": "^1.13.1"
   },
   "devDependencies": {
     "rimraf": "^6.0.1"