[nimble] Rename a missed enum and a bit more (prestodb#22577)

Summary:
X-link: facebookincubator/nimble#30

Pull Request resolved: prestodb#22577

X-link: facebookincubator/velox#9549

Found some enums that were left behind during the rename.

Reviewed By: sdruzkin

Differential Revision: D56370309

presto-native-execution/presto_cpp/main/types/PrestoToVeloxConnector.cpp

@@ -78,7 +78,7 @@ dwio::common::FileFormat toVeloxFileFormat(
       return dwio::common::FileFormat::JSON;
     }
   } else if (format.inputFormat == "com.facebook.alpha.AlphaInputFormat") {
-    return dwio::common::FileFormat::ALPHA;
+    return dwio::common::FileFormat::NIMBLE;
   }
   VELOX_UNSUPPORTED(
       "Unsupported file format: {} {}", format.inputFormat, format.serDe);
@@ -880,7 +880,7 @@ dwio::common::FileFormat toFileFormat(
     case protocol::HiveStorageFormat::PARQUET:
       return dwio::common::FileFormat::PARQUET;
     case protocol::HiveStorageFormat::ALPHA:
-      return dwio::common::FileFormat::ALPHA;
+      return dwio::common::FileFormat::NIMBLE;
     default:
       VELOX_UNSUPPORTED(
           "Unsupported file format in {}: {}.",
@@ -1468,4 +1468,4 @@ std::unique_ptr<protocol::ConnectorProtocol>
 TpchPrestoToVeloxConnector::createConnectorProtocol() const {
   return std::make_unique<protocol::TpchConnectorProtocol>();
 }
-} // namespace facebook::presto
+} // namespace facebook::presto