v0.4.0

What's Changed

• allow for passing Installation instance to GitHub API clients by @joshuadavidthomas in #30
• implement SyncWebhookView and refactor GitHubRouter for sync support by @joshuadavidthomas in #31
• rename internal webhook event modules by @joshuadavidthomas in #32
• add system check for sync/async webhook views by @joshuadavidthomas in #33
• add sync handlers for internal webhook events by @joshuadavidthomas in #34
• 🔖 bump version 0.3.0 -> 0.4.0 by @joshuadavidthomas in #35

Full Changelog: v0.3.0...v0.4.0