[R] [C++] Allow min/max in grouped aggregation

[asfimport]

Both min() and max() work in non-grouped aggregation and elsewhere, but with a grouped aggregation, we get a not-supported error:

> library(arrow)
> library(dplyr)
> 
> InMemoryDataset$create(mtcars) %>% 
+ group_by(cyl) %>% 
+ summarise(min_mpg = min(mpg))
Warning: Error : Expression min(mpg) not supported in Arrow; pulling data into R
# A tibble: 3 × 2
 cyl min_mpg
 <dbl> <dbl>
1 4 21.4
2 6 17.8
3 8 10.4

Reporter: Jonathan Keane / @jonkeane

Related issues:

• [R] Bindings for min/max aggregation (duplicates)

_{Note: This issue was originally created as ARROW-14103. Please see the migration documentation for further details.}

[asfimport]

Ian Cook / @ianmcook:
@jonkeane this is working fine for me in recent development versions (since #11175). Are you using an old build?

> InMemoryDataset$create(mtcars) %>%
+ group_by(cyl) %>%
+ summarise(min_mpg = min(mpg)) %>%
+ collect()
# A tibble: 3 x 2
 cyl min_mpg
 <dbl> <dbl>
1 6 17.8
2 4 21.4
3 8 10.4