`last_rc` was returning a 6.3.2 release candidate even though 6.3.2 was released

[brentleyjones]

last_rc points to the most recent release candidate. If there is no active release candidate, Bazelisk uses the latest Bazel release instead.

That statement no longer holds, which seems like a bug to me. Hard to test right now, because the 6.4.0 release candidate was just pushed out, but if the bug exists as I understand it, once 6.4.0 proper is released, last_rc won't download it.

[peakschris]

We have the same issue with Bazel 7:

D:\adir>cat .bazelversion
last_rc

D:\adir>bazel --version
bazel 7.0.0rc7

D:\adir>rm .bazelversion

D:\adir>bazel --version
bazel 7.0.0

[fmeum]

CC @meteorcloudy @fweikert