Add arch invalid error checking

[TophrC-dd]

What does this PR do?

This pr adds a check to validate if a proper architecture is defined when the layer is being added. If an invalid architecture is specified an error is given to the user that it's invalid with a readout of the architecture they tried using.

Motivation

An escalation came through where a customer was confused why their code wasn't being deployed. it turned out they had mapping in place to substitute the architecture against their own non-standard versions. this mapping didn't work so the runtime value was becoming set as undefined

Testing Guidelines

I tested the code block in chrome's dev tools to test functionality ensuring no syntax errors.

Additional Notes

N/A

Types of changes

• [ ] Bug fix
• [ ] New feature
• [ ] Breaking change
• [ ] Misc (docs, refactoring, dependency upgrade, etc.)

Check all that apply

• [ ] This PR's description is comprehensive
• [ ] This PR contains breaking changes that are documented in the description
• [ ] This PR introduces new APIs or parameters that are documented and unlikely to change in the foreseeable future
• [ ] This PR impacts documentation, and it has been updated (or a ticket has been logged)
• [ ] This PR's changes are covered by the automated tests
• [ ] This PR collects user input/sensitive content into Datadog

[duncanista]

Closing due to being stale. Feel free to re-open if issue persist.