Upgrade curl to latest version

[ddelnano]

Summary: Upgrade curl to latest version

This image was copied from the upstream curlimages/curl image:

$ crane copy curlimages/curl:8.15.0@sha256:4026b29997dc7c823b51c164b71e2b51e0fd95cce4601f78202c513d97da2922 ghcr.io/pixie-io/pixie-oss-pixie-dev-public-curl:8.15.0

Relevant Issues: N/A

Type of change: /kind dependencies

Test Plan: Skaffold'ed a cloud and vizier with the new image

• Verified this image has a clean trivy scan
• Verified the image is multiarch

$ crane manifest ghcr.io/pixie-io/pixie-oss-pixie-dev-public-curl:8.15.0@sha256:4026b29997dc7c823b51c164b71e2b51e0fd95cce4601f78202c513d97da2922 | jq '.manifests[].platform.architecture'
"386"
"arm"
"amd64"
"arm64"
"ppc64le"