Update webdataset
jenkins jenkins jenkins jenkins jenkins jenkins jenkins jenkins jenkins jenkins jenkins jenkins jenkins jenkins
# What does this PR do ?

* Update version to 0.2.86
* Pipe functionality removed and has been replaced with DataPipeline. 

~~Add global_seed functionality to exp_manager for reproducibility.~~ <- will move to a separate PR 

**Collection**: ASR, TTS, NLP


# Jenkins CI
To run Jenkins, a NeMo User with write access must comment `jenkins` on the PR.

# Before your PR is "Ready for review"
**Pre checks**:
- [ ] Make sure you read and followed [Contributor guidelines](https://github.com/NVIDIA/NeMo/blob/main/CONTRIBUTING.md)
- [ ] Did you write any new necessary tests?
- [ ] Did you add or update any necessary documentation?
- [ ] Does the PR affect components that are optional to install? (Ex: Numba, Pynini, Apex etc)
  - [ ] Reviewer: Does the PR have correct import guards for all optional libraries?
  
**PR Type**:
- [x] New Feature
- [ ] Bugfix
- [ ] Documentation
