feat: retry CommitRequests that fail with UNAVAILABLE

PiperOrigin-RevId: 316514901

google/firestore/v1/firestore_grpc_service_config.json

@@ -15,7 +15,16 @@
           "method": "Commit"
         }
       ],
-      "timeout": "60s"
+      "timeout": "60s",
+      "retryPolicy": {
+        "maxAttempts": 5,
+        "initialBackoff": "0.100s",
+        "maxBackoff": "60s",
+        "backoffMultiplier": 1.3,
+        "retryableStatusCodes": [
+          "UNAVAILABLE"
+        ]
+      }
     },
     {
       "name": [

google/firestore/v1/query.proto

@@ -170,11 +170,6 @@ message StructuredQuery {
     }
   }
 
-  // A reference to a field, such as `max(messages.time) as max_time`.
-  message FieldReference {
-    string field_path = 2;
-  }
-
   // An order on a field.
   message Order {
     // The field to order by.
@@ -184,6 +179,11 @@ message StructuredQuery {
     Direction direction = 2;
   }
 
+  // A reference to a field, such as `max(messages.time) as max_time`.
+  message FieldReference {
+    string field_path = 2;
+  }
+
   // The projection of document's fields to return.
   message Projection {
     // The fields to return.