Patch transcribe and support offline transcribe for hybrid model
# What does this PR do ?

Patch transcribe_util and support offline transcribe for hybrid model

**Collection**: ASR

# Changelog 
- Fix wrong decoding in write_transcript
- Add support for hybrid offline transcribe in asr_evaluator

# Usage
* You can potentially add a usage example below

```python
python transcribe_speech.py 
model_path={hybrid_model} 
decoder_type='ctc'/'rnnt'
```

# Before your PR is "Ready for review"
**Pre checks**:
- [x] 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**:
- [ ] New Feature
- [x] Bugfix
- [ ] Documentation

If you haven't finished some of the above items you can still open "Draft" PR.


## Who can review?

Anyone in the community is free to review the PR once the checks have passed. 
[Contributor guidelines](https://github.com/NVIDIA/NeMo/blob/main/CONTRIBUTING.md) contains specific people who can review PRs to various areas.

# Additional Information
* Related to # (issue) https://github.com/NVIDIA/NeMo/pull/6063/files#r1178635367
