chore(deps-dev): bump apache-arrow from 20.0.0 to 21.0.0 (#599)

Bumps [apache-arrow](https://github.com/apache/arrow-js) from 20.0.0 to 21.0.0.
- [Release notes](https://github.com/apache/arrow-js/releases)
- [Commits](https://github.com/apache/arrow-js/commits/v21.0.0)

---
updated-dependencies:
- dependency-name: apache-arrow
  dependency-version: 21.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: William French <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -12,6 +12,6 @@
     "@loaders.gl/kml": "^4.3.4"
   },
   "devDependencies": {
-    "apache-arrow": "^20.0.0"
+    "apache-arrow": "^21.0.0"
   }
 }

samples/deckgl-kml-updated/package.json

@@ -12,6 +12,6 @@
     "@loaders.gl/kml": "^4.3.4"
   },
   "devDependencies": {
-    "apache-arrow": "^20.0.0"
+    "apache-arrow": "^21.0.0"
   }
 }