add dev early adoptor run mode

Summary:
It was confusing filtering on shadow and prod for dev mode.

best to give a early adoptor run like opt mode.

When shadow is completed with testing, we can move the chronos job to schedule prod with the same verse config.

Reviewed By: Acesine

Differential Revision: D55387914

fbshipit-source-id: 343aa1c061311805dddb7c56fbfbd9a6b1e8d9e8

td_util/src/schedules.rs

@@ -83,6 +83,7 @@ pub enum ContinuousRunMode {
     Aarch64,
     #[default]
     Dev,
+    DevEarlyAdoptor,
     Opt,
     OptHourly,
     OptEarlyAdoptor,