Update gRPC implementation to evitaDB version `2024.4`

[novoj]

There were following changes in proto buffer definitions:

GrpcEnums.proto:

• GrpcPriceInnerRecordHandling.FIRST_OCCURRENCE renamed to LOWEST_PRICE
• new enum type GrpcCommitBehavior

GrpcEvitaAPI.proto:

• GrpcEvitaSessionRequest added field: commitBehavior
• GrpcEvitaSessionResponse added field: commitBehaviour

GrpcEvitaSessionAPI.proto:

• added GrpcCloseRequest + GrpcCloseResponse
• removed GrpcCloseTransactionRequest + GrpcOpenTransactionResponse and replaced with GrpcTransactionResponse
• updated method signature: rpc Close(google.protobuf.Empty) returns (google.protobuf.Empty);
• removed methods:
  • rpc OpenTransaction(google.protobuf.Empty) returns (GrpcOpenTransactionResponse);
  • rpc CloseTransaction(GrpcCloseTransactionRequest) returns (google.protobuf.Empty);
• added method: rpc GetTransactionId(google.protobuf.Empty) returns (GrpcTransactionResponse);

From now on we will try to maintain backward compatibility where possible.

• also provide option for disabling TLS on network protocol

[novoj]

We've already have version 2024.7. Also please provide support for non-TLS client.