curl: upgraded package to upstream

Upgraded net-misc/curl to version 8.4.0 on amd64

BUG=b/304681801
TEST=presubmit
RELEASE_NOTE=Upgraded net-misc/curl to version 8.4.0. This resolves CVE-2023-38545.

cos-patch: security-high
Change-Id: I4ccc8be58183cfce17fa15d1b42557bb7ecea541
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/portage-stable/+/59095
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>
Reviewed-by: Arnav Kansal <rnv@google.com>
14 files changed