The configuration setting vector_store_uri is renamed to
vector_store_primary_uri according to the final design.
In the future, the vector_store_secondary_uri setting will
be introduced.
This setting now also accepts a comma-separated list of URIs to prepare
for future support for redundancy and load balancing. Currently, only the
first URI in the list is used.
This change must be included before the next release.
Otherwise, users will be affected by a breaking change.
References: VECTOR-187
Closesscylladb/scylladb#26033
eedf506be5