[AAWF-509] Migrate all of the clients to single generator (#772)

Co-authored-by: skarimo <[email protected]>

Author: api-clients-generation-pipeline[bot]

.github/workflows/approved_status.yml

@@ -35,3 +35,4 @@ jobs:
         with:
           github-token: ${{ steps.get_token.outputs.token }}
           repo: datadog-api-spec
+          context: datadog-api-client-rust/master

.github/workflows/test.yml

@@ -125,4 +125,4 @@ jobs:
           github-token: ${{ steps.get_token.outputs.token }}
           repo: datadog-api-spec
           status: ${{ (needs.test.result == 'cancelled' || needs.examples.result == 'cancelled') && 'pending' || needs.test.result == 'success' && needs.examples.result == 'success' && 'success' || 'failure' }}
-          context: unit
+          context: master/unit