Remove Deref implementation from CandidateHash and update affected co…

[sylvaincormier]

This pull request removes the Deref implementation from CandidateHash and updates all affected code to reflect this change. This resolves a specific issue where the use of Deref for CandidateHash was deemed inappropriate and could lead to potential misuse or unclear code semantics.

Issue Linked: Fixes #5224
Integration
Downstream projects relying on CandidateHash should note that the Deref implementation is no longer available. Instead, direct methods or traits should be used for accessing the inner hash value. No additional changes are required apart from adopting this updated interface.
Example:

Before:

let hash_value = candidate_hash.deref();

After:

let hash_value = candidate_hash.value();

Ensure that all usages of Deref for CandidateHash in downstream projects are updated to avoid compilation errors.
Review Notes

This PR includes the following changes:

1. Removed the Deref implementation for CandidateHash.
   

2. Updated all internal usages of CandidateHash to use explicit methods or appropriate patterns instead of relying on Deref.
   

3. Verified all tests to ensure the updated code remains functional and passes all cases.
   

Detailed implementation notes:

• Removed the Deref implementation from CandidateHash.

• Refactored internal usages to align with the updated interface.

• Updated tests across all affected modules to ensure compatibility.

My PR includes a detailed description as outlined above.

1. I have ensured that downstream integration notes are included and actionable.
2. I have reviewed and labeled my PR appropriately.
3. All relevant tests pass successfully, verifying the fix.

[cla-bot-2021]

User @sylvaincormier, please sign the CLA here.

[sylvaincormier]

This is my first pull request to this repo so I have converted as a draft as a precaution, please advise

[sylvaincormier]

Closing to resubmit with cleaned up branch