fix(SearchResponse) automaticRadius property encoding/decoding (#673)

Author: VladislavFitz

Sources/AlgoliaSearchClient/Models/Search/Response/SearchResponse/SearchResponse+Codable.swift

@@ -60,7 +60,8 @@ extension SearchResponse: Codable {
     self.params = try container.decodeIfPresent(forKey: .params)
     self.message = try container.decodeIfPresent(forKey: .message)
     self.aroundLatLng = try container.decodeIfPresent(forKey: .aroundLatLng)
-    self.automaticRadius = try container.decodeIfPresent(forKey: .automaticRadius)
+    let legacyAutomaticRadius: String? = try container.decodeIfPresent(forKey: .automaticRadius)
+    self.automaticRadius = legacyAutomaticRadius.flatMap(Double.init)
     self.serverUsed = try container.decodeIfPresent(forKey: .serverUsed)
     self.indexUsed = try container.decodeIfPresent(forKey: .indexUsed)
     self.abTestVariantID = try container.decodeIfPresent(forKey: .abTestVariantID)
@@ -94,7 +95,8 @@ extension SearchResponse: Codable {
     try container.encodeIfPresent(params, forKey: .params)
     try container.encodeIfPresent(message, forKey: .message)
     try container.encodeIfPresent(aroundLatLng, forKey: .aroundLatLng)
-    try container.encodeIfPresent(automaticRadius, forKey: .automaticRadius)
+    let legacyAutomaticRadius = automaticRadius.flatMap { "\($0)" }
+    try container.encodeIfPresent(legacyAutomaticRadius, forKey: .automaticRadius)
     try container.encodeIfPresent(serverUsed, forKey: .serverUsed)
     try container.encodeIfPresent(indexUsed, forKey: .indexUsed)
     try container.encodeIfPresent(abTestVariantID, forKey: .abTestVariantID)