chore: merge topos-smart-contracts into topos

[JDawg287]

Description

This PR merges the topos-smart-contracts repo into topos to reduce the friction between the two. Currently, the certificate producer, formerly known as the sequencer, relies on the topos-smart-contracts as a dependency, to push and pull the certificates from the subnets.

Fixes TP-888

Additions and Changes

• Added the topos-smart-contracts to the ./contracts dir
• Added and modified the GitHub workflows for the contracts
• Added prefix to the GitHub workflows to differentiate between the Contracts workflows and the Topos workflows
• Removed Docker build and push for the contracts as the contracts are available in the topos image directly
• Changed the dependency link for the topos-sequencer-subnet-client to the local ./contracts path

Features and implication

• Added a build script for the topos-sequencer-subnet-client component:
  • The script runs if there is any change in the ./contracts directory
  • The script also offers an optional flag to skip the compilation of the contracts
    Note: the build script requires installation of Node.js on the system as a prerequisite
• The topos Docker image contains the necessary contract artifacts
  • Added an initial stage in the Dockerfile to build the contract artifacts - this approach is the least invasive for the current production Docker image

PR Checklist:

• I have performed a self-review of my code
• I have commented on my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added or updated tests that comprehensively prove my change is effective or that my feature works

[CLAassistant]

All committers have signed the CLA.

[codecov]

Codecov Report

Attention: Patch coverage is 72.22222% with 10 lines in your changes are missing coverage. Please review.

Project coverage is 72.23%. Comparing base (642203c) to head (10754d0).
Report is 5 commits behind head on main.

Files	Patch %	Lines
crates/topos-sequencer-subnet-client/build.rs	74.28%	9 Missing ⚠️
...pos-sequencer-subnet-client/src/subnet_contract.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #475      +/-   ##
==========================================
+ Coverage   71.91%   72.23%   +0.31%     
==========================================
  Files         227      220       -7     
  Lines       12745    12863     +118     
==========================================
+ Hits         9166     9291     +125     
+ Misses       3579     3572       -7     

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