OCPBUGS-80627: Bump google.golang.org/grpc to v1.79.3 to fix CVE-2026-33186

[amitesh1201]

Summary

• Bumps google.golang.org/grpc from v1.68.1 to v1.79.3 to address CVE-2026-33186
• Removes stale golang.org/x/net replace directive (pinned to v0.17.0 since Oct 2023 for CVE-2023-39325). The current go.mod requires v0.48.0, which already includes that fix. The old pin broke gRPC v1.79.3, which needs ReadFrameHeader/ReadFrameForHeader methods added in x/net v0.47.0
• Re-vendored via openshift-hack/update-vendor.sh

Test plan

• openshift-hack/test-unit.sh passes
• openshift-hack/verify-vendor.sh passes

[openshift-ci-robot]

@amitesh1201: This pull request references Jira Issue OCPBUGS-80627, which is invalid:

• release note text must be set and not match the template OR release note type must be set to "Release Note Not Required". For more information you can reference the OpenShift Bug Process.
• expected dependent Jira Issue OCPBUGS-80804 to be in one of the following states: VERIFIED, RELEASE PENDING, CLOSED (ERRATA), CLOSED (CURRENT RELEASE), CLOSED (DONE), CLOSED (DONE-ERRATA), but it is ASSIGNED instead

Comment /jira refresh to re-evaluate validity if changes to the Jira bug are made, or edit the title of this pull request to link to a different bug.

The bug has been updated to refer to the pull request using the external bug tracker.

Details

In response to this:

Summary

• Bumps google.golang.org/grpc from v1.68.1 to v1.79.3 to address CVE-2026-33186
• Removes stale golang.org/x/net replace directive (pinned to v0.17.0 since Oct 2023 for CVE-2023-39325). The current go.mod requires v0.48.0, which already includes that fix. The old pin broke gRPC v1.79.3, which needs ReadFrameHeader/ReadFrameForHeader methods added in x/net v0.47.0
• Re-vendored via openshift-hack/update-vendor.sh

Test plan

• openshift-hack/test-unit.sh passes
• openshift-hack/verify-vendor.sh passes

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[amitesh1201]

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[amitesh1201]

/retest-required

[openshift-ci]

@amitesh1201: all tests passed!

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