v1.75.1-sec.1 fixes CVE-2026-33186 for Go v1.23

What's Changed

• [Go v1.23] CVE-2026-33186: grpc: enforce strict path checking for incoming requests on the server by @Atharva-Shinde in #1

Full Changelog: https://github.com/openshift-sustaining/grpc-go/commits/v1.75.1-sec.1