portage-stable: upgraded package wget to upstream

Upgraded net-misc/wget to version 1.21.1

BUG=b/196446573
TEST=presubmit
RELEASE_NOTE=Upgraded net-misc/wget to v1.21.1. This also resolves CVE-2021-31879.

cos-patch: security-moderate
Change-Id: Ia40feb9d32a4edcd2f957c6bd8a1564410d66124
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/portage-stable/+/21172
Reviewed-by: Roy Yang <royyang@google.com>
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Main-Branch-Verified: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
3 files changed