chore: sync Network Operator release versions

[github-actions]

Automated nightly synchronization from Mellanox/network-operator release branches.

The newest catalog release falls back to master only while its release branch is absent.

Source workflow: https://github.com/NVIDIA/k8s-launch-kit/actions/runs/32211722079

[greptile-apps]

Greptile Summary

Updates the Network Operator release catalog to use a newer DOCA driver build for the current staging release.

• Changes the pinned DOCA driver image tag from doca3.5.0-26.07-0.7.1.0-0 to doca3.5.0-26.07-0.7.3.0-0.
• Leaves the release’s operator, Helm repository, and xPlane coordinates unchanged.

Confidence Score: 5/5

The PR appears safe to merge because the catalog-only version synchronization introduces no identified contract or consistency violation.

The changed YAML preserves the existing schema and updates only the DOCA driver image tag consumed by the normal release-selection and rendering path.

Important Files Changed

Filename	Overview
pkg/networkoperatorplugin/releases/releases.yaml	Advances one DOCA driver image pin in the embedded release catalog; no actionable defect was identified.

_{Reviews (1): Last reviewed commit: "chore: sync Network Operator release ver..." | Re-trigger Greptile}