build(deps): update tensorboard requirement in /requirements

Updates the requirements on [tensorboard](https://github.com/tensorflow/tensorboard) to permit the latest version.
- [Release notes](https://github.com/tensorflow/tensorboard/releases)
- [Changelog](https://github.com/tensorflow/tensorboard/blob/master/RELEASE.md)
- [Commits](tensorflow/tensorboard@data-server-v0.1.0...2.18.0)

---
updated-dependencies:
- dependency-name: tensorboard
  dependency-type: direct:production
...

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

requirements/datatype_pointcloud.txt

@@ -3,4 +3,4 @@
 open3d >=0.17.0, <0.18.0
 # torch >=1.8.0, <1.9.0
 # torchvision >0.9.0, <0.10.0
-tensorboard <=2.13.0
+tensorboard <=2.18.0