Bump machine-emulator to 0.18.1

[endersonmaia]

This pull request includes several updates to improve the Docker build process for the SDK, including version bumps and optimizations in the Dockerfile. The most important changes involve the introduction of new ARG variables, restructuring of the Dockerfile, and updates to the docker-bake.hcl configuration.

Dockerfile Improvements:

• Introduction of New ARG Variables: Added new ARG variables for CRANE_VERSION, NODEJS_VERSION, SU_EXEC_VERSION, and ANVIL_VERSION to allow for better version control and flexibility. (packages/sdk/Dockerfile)
• Restructuring Dockerfile Stages: The Dockerfile has been restructured to include distinct stages for base, builder, su-exec, crane, alto, devnet, and the final SDK image, improving readability and maintainability. (packages/sdk/Dockerfile)
• Optimized Package Installation: Refactored the package installation commands to reduce redundancy and ensure all necessary packages are installed in the correct stages. (packages/sdk/Dockerfile)

Version Updates:

• Version Bumps: Updated versions for several components, including machine-emulator, image-kernel, linux-kernel, and xgenext2fs, ensuring the SDK uses the latest stable releases. (packages/sdk/Dockerfile)

Configuration Updates:

• docker-bake.hcl Configuration: Updated the docker-bake.hcl configuration to reflect the new ARG variables and version updates, ensuring consistency across the build process. (packages/sdk/docker-bake.hcl)

[changeset-bot]

🦋 Changeset detected

Latest commit: 939bb45

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@cartesi/sdk	Minor

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