all: add release-branch.go1.20 view and poller

Change-Id: I19d7f98c70b0533e025fa92f228882ca04004a9f
Reviewed-on: https://go-review.googlesource.com/c/build/+/464155
Reviewed-by: Michael Knyszek <mknyszek@google.com>
TryBot-Bypass: Carlos Amedee <carlos@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Carlos Amedee <carlos@golang.org>
4 files changed
tree: 4dd5b0a0363e80cb9377030ecad88b525a8b25d4
  1. generated/
  2. infra/
  3. recipes/
  4. .gitignore
  5. main.star
  6. README
  7. recipes.star