make better error handling of `length` being too large

[EmilHvitfeldt]

library(sparsevctrs)
sparse_integer(integer(), integer(), length = 100000000000)
#> Warning in sparse_integer(integer(), integer(), length = 1e+11): NAs introduced
#> by coercion to integer range
#> [1]

[EmilHvitfeldt]

closed in 7672fd8