Replace logs stream panels with saved searches

[flash1293]

The logs stream application and embeddables are going to be deprecated and removed in a future version (see https://github.com/elastic/observability-dev/issues/3242).

This means dashboards shouldn't use the logs stream panel type anymore. Instead, they should be replaced by saved searches.

The following dashboards need to be changed:

• packages/cisco_meraki/kibana/dashboard/cisco_meraki-4832a430-af22-11ec-a899-6f7e676e0fb4.json
• packages/checkpoint/kibana/dashboard/checkpoint-259c5770-bd5b-11ed-b58e-dda7b2de7340.json

[flash1293]

cc @elastic/security-service-integrations @elastic/sec-deployment-and-devices could you take a look please and let me know whether there are any questions?

[flash1293]

FYI @gbamparop

[andrewkroh]

I think one team can handle the updates to both package despite ownership. Added it to the elastic/sec-deployment-and-devices backlog.

[qcorporation]

@flash1293 is my understanding correct that this needs to be done for 8.16?

[flash1293]

@qcorporation In 8.16, things will still work, it should be done by 9.0 - the earlier the better of course :)

[taylor-swanson]

As an aside, there's an SDH for log streams in Check Point, although I don't think the issue is with the log stream visualization itself. If there does end up being an issue with the visualization, it will be a good opportunity to migrate to a saved search.