refactor: replace experimental maps
and slices
with stdlib
#6372
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The experimental functions are now part of the standard library as of Go 1.21 and Go 1.23.
The key difference is that
maps.Keys
andmaps.Values
in thegolang.org/x/exp
package return a slice, whereasmaps.Keys
andmaps.Values
in the standard library return an iterator. To work with slices, we need to useslices.Collect
to convert the iterator into a slice.Reference: https://go.dev/doc/go1.21#slices
Reference: https://go.dev/doc/go1.23#iterators
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