fix: handle fetch github stars errors

[tiagoapolo]

Thanks for submitting a PR! Please check the boxes below:

• I have added information to docs/ if required so people know about the feature!
• I have filled in the "Changes" section below?
• I have filled in the "How did you test this code" section below?
• I have used a Conventional Commit title for this Pull Request

Changes

Ref: #4945

• Don't show github star count when gh api fails
• bypass error by adding a .catch handler

How did you test this code?

1. Access flagsmith dashboard, on the top right, stars count should display
2. Access flagsmith dashboard, on the top right, if gh api fails then stars count will not display

Success

GitHub API Failure

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
flagsmith-frontend-preview	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jan 6, 2025 0:38am
flagsmith-frontend-staging	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jan 6, 2025 0:38am

1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
docs	⬜️ Ignored (Inspect)	Visit Preview		Jan 6, 2025 0:38am

[github-actions]

Docker builds report

Image	Build Status	Security report
ghcr.io/flagsmith/flagsmith-api-test:pr-4952	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-frontend:pr-4952	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-e2e:pr-4952	Finished ✅	Skipped
ghcr.io/flagsmith/flagsmith-api:pr-4952	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith:pr-4952	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-private-cloud:pr-4952	Finished ✅	Results ✅
ghcr.io/flagsmith/flagsmith-frontend:pr-4952	Finished ✅	Results ✅

[github-actions]

Uffizzi Preview deployment-59512 was deleted.