Deploy swh-search v0.16.4

v0.16.3 just adds an API endpoint to the RPC server, and v0.16.4 updates the QL grammar to add new searchable visit types for the query language. So upgrade & restart is enough

staging (webapp, search0 [1]):

• Upgrade package
• Restart
• Tag grafana

prod (moma, webapp1, search1 [2]):

• Upgrade package

• Restart

• Tag grafana

• [1] .internal.staging.swh.network

• [2] .internal.softwareheritage.org

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Migrated from T4614 (view on Phabricator)