ci - update `identify-codeowners` to use the team topology file (source of truth)

### What is this about?

The identify-codeowners logic uses a [hardcoded team list](https://github.com/MetaMask/metamask-extension/blob/main/.github/scripts/identify-codeowners.ts#L27). To avoid maintenance issues, I think we should:

- Remove the hardcoded list and use the new team topology file
and
- The identify-codeowners list also attaches an emoji to each team. Should we add an emoji for each team, in the new team topology file?

### Scenario

_No response_

### Design

_No response_

### Technical Details

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### Threat Modeling Framework

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### Acceptance Criteria

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### Stakeholder review needed before the work gets merged

- [ ] Engineering (needed in most cases)
- [ ] Design
- [ ] Product
- [ ] QA (automation tests are required to pass before merging PRs but not all changes are covered by automation tests - please review if QA is needed beyond automation tests)
- [ ] Security
- [ ] Legal
- [ ] Marketing
- [ ] Management (please specify)
- [ ] Other (please specify)

### References

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