Update partial_cloudflare.erb to include sending along cf-ray
Addresses https://gitlab.com/gitlab-com/gl-infra/infrastructure/-/issues/12798#note_562002334 Sends along cf-ray to X-Request-Id
Addresses https://gitlab.com/gitlab-com/gl-infra/infrastructure/-/issues/12798#note_562002334 Sends along cf-ray to X-Request-Id