test(e2e): increase timeout to improve stability

[felangel]

Description

• tests(e2e): increase timeout to improve stability (5 minutes is not enough time to allow the integration test to finish reliably).

Type of Change

• ✨ New feature (non-breaking change which adds functionality)
• 🛠️ Bug fix (non-breaking change which fixes an issue)
• ❌ Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Code refactor
• ✅ Build configuration change
• 📝 Documentation
• 🗑️ Chore
• 🧪 Tests

[eseidel]

Do we need to add fancier machines or otherwise optimize the test?

[felangel]

Do we need to add fancier machines or otherwise optimize the test?

We can't use our custom runners since this is a public repo and our tests are pretty simple. The bottleneck is mostly running shorebird release and shorebird patch (e.g. flutter build). We could add some caching to speed things up but doing this for now just as a way to hopefully reduce the number of timeouts in our e2e.