Bump arango-rs(0.5 to 0.6) and bb8(0.8 to 0.9) deps version

[AbrarNitk]

Description

In this PR we have upgraded the bb8 to 0.9 and arango-rs to 0.6, because we are also using recent version of bb8-redis which uses the bb8 version 0.9, so different versions are conflicting bb8.

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[gabor-boros]

Hey @AbrarNitk, thank you for the PR! I thought nobody else uses this crate. Great to see that I was wrong.

[gabor-boros]

Although it is merged, just to double check: What was the reason behind changing use arangors::uclient::reqwest::ReqwestClient; to use arangors::client::reqwest::ReqwestClient; and removing #[async_trait]?

[gabor-boros]

@AbrarNitk do you have any insights?

[AbrarNitk]

Hey @gabor-boros, In arango dependency module name has changed from uclient to client. We do not require async_trait in the newer version of rust, now we can have async functions in traits since 1.75.

https://blog.rust-lang.org/2023/12/21/async-fn-rpit-in-traits/

[gabor-boros]

Thanks @AbrarNitk! I'm going to publish the new version soon.