chore: add forge install to docker startup

[horsefacts]

Motivation

The contracts-deployer docker-compose service fails if the user hasn't installed forge dependencies in their local repository.

Change Summary

Add a forge install step to the contracts-deployer startup script.

Merge Checklist

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• [x] The PR title adheres to the conventional commits standard
• [x] The PR has been tagged with change type label(s) (i.e. documentation, feature, bugfix, or chore)
• [x] The PR's changes adhere to all the requirements in the contribution guidelines
• [x] All commits have been signed

Additional Context

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PR-Codex overview

This PR focuses on deploying a contract and disabling impersonation.

Detailed summary

• Added forge install command for deployment
• Added forge script command for executing a script
• Added cast rpc command for enabling and disabling impersonation

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[github-actions[bot]]

Coverage after merging horsefacts/forge-install-docker into main will be

98.79%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
src
Bundler.sol	100%	100%	100%	100%
FnameResolver.sol	100%	100%	100%	100%
IdRegistry.sol	100%	100%	100%	100%
KeyRegistry.sol	100%	100%	100%	100%
StorageRegistry.sol	100%	100%	100%	100%
src/lib
Signatures.sol	100%	100%	100%	100%
TransferHelper.sol	0%	0%	0%	0%	12, 17, 20, 20, 20
TrustedCaller.sol	100%	100%	100%	100%