chore: disable codeflow for pull requests (#28101)

Issue number: N/A

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## What is the current behavior?
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Team isn't using the integration. 

## What is the new behavior?
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this PR. -->

- Disables the Codeflow integration on pull requests

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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and migration path for existing applications below. -->


## Other information

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