Parv

Results 4 issues of Parv

## Steps to reproduce * Run the leaderboard-go example with the current docker-compose.yaml ## Expected output * The example should run as mentioned in the documentation. ![DiceDB Leaderboard](https://github.com/user-attachments/assets/327792c7-d788-47d4-a767-ef2c478d75cb) ## Observed...

Fixes: #613 1. Updates the image to `latest` from `0.0.2` in `docker-compose.yaml` file in `examples/leaderboard-go`.

* Adds support for command `LINSERT`. * Adds `DequeIterator` for traversing over the deque. `LRANGE` command should now be straight forward to implement using the iterator.

* Adds support for command `LINSERT` and `LRANGE`. * Adds `DequeIterator` for traversing over the `deque`. `LRANGE` command should now be straight forward to implement using the iterator.

new -- command