Fix result_large_err Clippy error

[a6dulaleem]

Problem description
arning: the Err-variant returned from this function is very large
--> nodejs/src/stream_manager.rs:361:81
|
361 | fn delete_reader_group(&self, scope_name: &str, reader_group_name: &str) -> Result<(), TableError> {
| ^^^^^^^^^^^^^^^^^^^^^^ the Err-variant is at least 128 bytes
|
= help: try reducing the size of pravega_client::sync::table::TableError, for example by boxing large elements or replacing it with Box<pravega_client::sync::table::TableError>
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#result_large_err

How Reproduce
Just run cargo clippy --workspace