The experimental functions in `golang.org/x/exp/slices` are now
available in the standard library since Go 1.21.
Reference: https://go.dev/doc/go1.21#slices
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
This PR updates the `*ByTempalte` insights queries used for generating Prometheus metrics to behave the same way as the new rollup query and re-written insights queries that utilize the rolled up data.
