Fix CircleCI build failure due to secret scan and missing toposort dependency

[ravi-kumar-pilla]

Description

• Resolves the build failure - https://app.circleci.com/pipelines/github/kedro-org/kedro-viz/11807/workflows/c0708990-c866-4e6f-b59d-b4bb94068c36/jobs/75254

Development notes

• Added src/components/feature-hints/feature-hints-content.js file to the trufflehog ignore text
• Added temporary dependency for toposort as Kedro has dropped the dependency - Drop dependency on toposort in favour of built-in graphlib kedro#3728

QA notes

• CircleCI build should pass
• All tests should pass

Checklist

• Read the contributing guidelines
• Opened this PR as a 'Draft Pull Request' if it is work-in-progress
• Updated the documentation to reflect the code changes
• Added new entries to the RELEASE.md file
• Added tests to cover my changes

[astrojuanlu]

I see there's an actual dependency on toposort

kedro-viz/package/kedro_viz/services/layers.py

Line 6 in 6206e43

from toposort import CircularDependencyError, toposort_flatten

[ravi-kumar-pilla]

I see there's an actual dependency on toposort

kedro-viz/package/kedro_viz/services/layers.py

Line 6 in 6206e43

from toposort import CircularDependencyError, toposort_flatten

yes @astrojuanlu . I think we were using this dependency from Kedro environment. Now that Kedro has dropped it, I added the requirement to our requirements file and will create a ticket to see if we can migrate to graphlib completely. Thanks

[astrojuanlu]

Don't block this one on my review, I'll be in meetings all day 😅