fixed the bug for fetching right dataflow against manual orgtask and also N+1 query

[Ishankoradia]

• While fetching the orgtasks on transform page we were not doing dataflow_type = manual. So for the dbt run orgtask we could have fetched deployment id of any random pipeline also. I dont know how we missed it. I think we were lucky we got the right deployment_id with .first()
• Also fixed the N+1 query here. Sentry email this morning.

@fatchat

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 92.85714% with 1 line in your changes missing coverage. Please review.

Project coverage is 72.72%. Comparing base (88d9b85) to head (976dbbb).

Files	Patch %	Lines
ddpui/api/orgtask_api.py	92.85%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #800 +/- ## ========================================== + Coverage 72.68% 72.72% +0.03% ========================================== Files 182 182 Lines 7429 7436 +7 ========================================== + Hits 5400 5408 +8 + Misses 2029 2028 -1 ```

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