fix: update pytest and pytest-mock dependencies in poetry files

[craig-rueda]

Changes

• Move pytest-mock from main dependencies to dev dependencies
• Update dependency markers for testing-related packages to ensure they're only in dev dependencies
• Fix dependency configuration to avoid installing test libraries in production environments

Why

This change ensures that test dependencies aren't installed in production environments, which reduces the final package size and removes unnecessary dependencies from the main package requirements.

Testing

• Verified that tests still run properly with the updated dependency configuration
• Confirmed that the package can be built and installed without including test dependencies