Update arkwork deps from v0.4.0 to v0.5.0

[SuccinctPaul]

Description

As most ark lib has been upgraded to v0.5.0. When I wanna to reuse this lib, it shows version conflicts. So did following modification:

• feat: update arkwork deps from v0.4.0 to v0.5.0
• feat: remove reduction bench crate, move the bench outside

closes: #XXXX

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Before we can merge this PR, please make sure that all the following items have been checked off. If any of the checklist items are not applicable, please leave them but write a little note why.

• [x] Targeted PR against correct branch (master)
• [ ] Linked to Github issue with discussion and accepted design OR have an explanation in the PR that describes this work.
• [ ] Wrote unit tests
• [ ] Updated relevant documentation in the code
• [ ] Added a relevant changelog entry to the Pending section in CHANGELOG.md
• [x] Re-reviewed Files changed in the Github PR explorer

[SuccinctPaul]

Would you like to release this repo to 0.5.0 ?