ncurses: upgraded package to upstream

Upgraded sys-libs/ncurses to version 6.3_p20220423 on amd64

BUG=b/230722092
TEST=presubmit
RELEASE_NOTE=Upgraded sys-libs/ncurses to v6.3_p20220423.
This resolves CVE-2022-29458.

Change-Id: I73322d107e713138ced6e1239aa450ca16fbb1f9
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/portage-stable/+/32362
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Vaibhav Rustagi <vaibhavrustagi@google.com>
7 files changed