Remove unwrap() and fix clippy warnings

[JasonTulp]

Description

• This PR makes changes to the entire codebase based on running cargo clippy. Changes have been made where deemed appropriate. It also removes the use of unwrap() in favour of expect (with the exception of in mock/ test code)

Context & Background

• The ticket to remove unwrap was brought up in TRN-211 from Red4Sec which is what this PR aims to address

Related Issues

• https://futureverse.atlassian.net/browse/TRN-230?atlOrigin=eyJpIjoiNjkzZWM3YjU1ZmRjNDIzNGI3MWY0NmM5ZDVjMDEwMjQiLCJwIjoiaiJ9

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Release Notes

Key Changes

Type of Change

• [x] Runtime Changes
• [ ] Client Changes

[zees-dev]

CI fix required