Fix: Do not force BLOCKING_STATIC_RENDER for DOM bots (#82427)
The issue was that DOM bots with PPR-enabled routes were being forced to
use BLOCKING_STATIC_RENDER mode, which prevented them from using the
fallback cache lookup mechanism. This caused them to generate new
content with isRevalidating: true, which blocks postponed data and
triggers the Math.random() static generation bailout error.
For HTML bots, they keep using BLOCKING_STATIC_RENDER because SSG was
turned off for them and won't see the SSG bailout error. For DOM bots,
they should behave like a normal user.
Fixes NAR-273
