[release-branch.go1.22] runtime: use bootstrapRand to initialize hashkey
The seed for rand is not initialized until after alginit. Before
initialization, rand returns a deterministic sequence, making hashkey
deterministic across processes.
Switch to bootstrapRand, like other early rand calls, such as
initialization of aeskeysched.
For #66885.
Fixes #66886.
Change-Id: I5023a9161232b49fda2ebd1d5f9338bbdd17b1fe
Reviewed-on: https://go-review.googlesource.com/c/go/+/580136
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
(cherry picked from commit
1a3682b4c1e44f334c5cc8fbad3c28b853c2aff2)
Reviewed-on: https://go-review.googlesource.com/c/go/+/580018