Merge #3631

3631: sort errors - `_geo(x,y)` and `_geoDistance(x,y)` return `ReservedKeyword` r=irevoire a=cymruu

# Pull Request

## Related issue
Fix part of #3006 (sort errors)

## What does this PR do?
- made meilisearch return `ReservedKeyword` when sorting by `_geo(x,y)` or `_geoDistance(x,y)`

Screenshot: 
![image](https://user-images.githubusercontent.com/2981598/228969970-56dae3d2-7851-48ea-a913-c4483224d709.png)


I ran `cargo test --package milli -- --test-threads 1` and the tests passed.

## PR checklist
Please check if your PR fulfills the following requirements:
- [x] Does this PR fix an existing issue, or have you listed the changes applied in the PR description (and why they are needed)?
- [x] Have you read the contributing guidelines?
- [ ] Have you made sure that the title is accurate and descriptive of the changes?


Co-authored-by: Filip Bachul <filipbachul@gmail.com>

milli/src/asc_desc.rs

@@ -81,6 +81,8 @@ impl FromStr for Member {
                 if is_reserved_keyword(text)
                     || text.starts_with("_geoRadius(")
                     || text.starts_with("_geoBoundingBox(")
+                    || text.starts_with("_geo(")
+                    || text.starts_with("_geoDistance(")
                 {
                     return Err(AscDescError::ReservedKeyword { name: text.to_string() })?;
                 }
@@ -265,6 +267,13 @@ mod tests {
             ("_geoPoint(0, -180.000001):desc", GeoError(BadGeoError::Lng(-180.000001))),
             ("_geoPoint(159.256, 130):asc", GeoError(BadGeoError::Lat(159.256))),
             ("_geoPoint(12, -2021):desc", GeoError(BadGeoError::Lng(-2021.))),
+            ("_geo(12, -2021):asc", ReservedKeyword { name: S("_geo(12, -2021)") }),
+            ("_geo(12, -2021):desc", ReservedKeyword { name: S("_geo(12, -2021)") }),
+            ("_geoDistance(12, -2021):asc", ReservedKeyword { name: S("_geoDistance(12, -2021)") }),
+            (
+                "_geoDistance(12, -2021):desc",
+                ReservedKeyword { name: S("_geoDistance(12, -2021)") },
+            ),
         ];
 
         for (req, expected_error) in invalid_req {