Update Ruby functions framework default to latest release (v1.1.0)
Update Ruby functions framework default to latest release (v1.1.0)

Supports concurrent requests by increasing thread pool to 8. Full release notes: https://github.com/GoogleCloudPlatform/functions-framework-ruby/releases/tag/functions_framework%2Fv1.1.0

PiperOrigin-RevId: 423109051
Change-Id: Id61d9bccb8c64ab49d5c946c14b9dc2251434593

GoogleCloudPlatform/buildpacks,GoogleCloudPlatform/buildpacks,GoogleCloudPlatform/buildpacks,GoogleCloudPlatform/buildpacks