feat: [NetworkManagement] add messages and fields related to Redis Instances

[gcf-owl-bot[bot]]

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feat: add messages and fields related to Redis Clusters

feat: add PSC network attachment URI to the InstanceInfo proto

feat: add subnet URI and region name to the NetworkInfo proto

feat: add firewall policy URI to the FirewallInfo proto

feat: add fields related to advertised routes to the RouteInfo proto

feat: add region name field to the RouteInfo proto

feat: add region name to the ForwardingRuleInfo proto

feat: add load balancer name to the ForwardingRuleInfo proto

feat: add PSC target fields to the ForwardingRuleInfo proto

feat: add more detailed abort and drop causes to corresponding enums

chore: update Google API field annotations format

docs: update outdated comments in the FirewallInfo proto PiperOrigin-RevId: 686129238

Source-Link: https://github.com/googleapis/googleapis/commit/cab65d56577608266888c9800ba42c2bf4704805

Source-Link: https://github.com/googleapis/googleapis-gen/commit/cd5b0a24acc4c2824dcb0db4e969c3551a9470cf Copy-Tag: eyJwIjoiTmV0d29ya01hbmFnZW1lbnQvLk93bEJvdC55YW1sIiwiaCI6ImNkNWIwYTI0YWNjNGMyODI0ZGNiMGRiNGU5NjljMzU1MWE5NDcwY2YifQ==