Fixed arbitrary ordering of directions in GraphqlConfig causing error (#625)

## Description
If the user specified their orderings in their GraphqlConfig in a
different order, they would be presented with an error.

```yaml
enumTypeNames:
  - directions: # Reversed ordering of this list
      - Desc
      - Asc
    typeName: OrderBy
```

> ERR Code=opendds-validation Message="invalid metadata: error building
schema: unable to build schema: metadata is not consistent: invalid
directions: Desc,Asc defined in orderByInput of GraphqlConfig ,
currenlty there is no support for partial directions. Please specify a
type which has both 'asc' and 'desc' directions"
7:56PM ERR Supergraph Build failed.

This has been fixed.

## Changelog

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### Changelog entry

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Fixed arbitrary ordering of directions in GraphqlConfig causing invalid
error

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V3_GIT_ORIGIN_REV_ID: b27a0dd3b5c665f54ea58a40af8b2b1bfb0d2434

v3/crates/metadata-resolve/src/stages/graphql_config/mod.rs

@@ -1,5 +1,7 @@
 //! This is where we will resolve graphql configuration
 
+use std::collections::HashSet;
+
 use crate::helpers::types::mk_name;
 use crate::types::error::{Error, GraphqlConfigError};
 use lang_graphql::ast::common as ast;
@@ -206,8 +208,8 @@ pub fn resolve_graphql_config(
                             // TODO: Naveen: Currently we do not allow enabling a specific direction
                             // for orderableField. In future when we support this, we would like to
                             // build different enum types for different variations of directions.
-                            if order_by_enum_type.directions
-                                != vec![OrderByDirection::Asc, OrderByDirection::Desc]
+                            if HashSet::from_iter(order_by_enum_type.directions.iter().cloned())
+                                != HashSet::from([OrderByDirection::Asc, OrderByDirection::Desc])
                             {
                                 let invalid_directions = order_by_enum_type
                                     .directions

v3/crates/metadata-resolve/tests/passing/supergraph_config_object/example.json

@@ -34,7 +34,7 @@
               },
               "enumTypeNames": [
                 {
-                  "directions": ["Asc", "Desc"],
+                  "directions": ["Desc", "Asc"],
                   "typeName": "OrderByAscDesc"
                 }
               ]