[pinpoint] auto-bisect uses form instead of querystring to create new job
[pinpoint] auto-bisect uses form instead of querystring to create new job

The current handling in flask only handle data passed in form, but not in query string. Auto bisect uses query string to pass arguments. This CL changed auto bisect to use form.

Bug: chromium:1352878
Change-Id: I47bed151346a5b2d15d2efe87cb0db17a49ebc08
Reviewed-on: https://chromium-review.googlesource.com/c/catapult/+/3867280
Reviewed-by: John Chen <334fbfbb4df7c78f091ea1b77c69ca6ac731a3f3@chromium.org>
Commit-Queue: Wenbin Zhang <45ad8a1ff616a38a2202fd35571df81897c5f14f@google.com>

catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult,catapult-project/catapult