can you add a python 3.8 or python 3.9 layer for eu-central-1

I'd like to have the python 3.8 or python 3.9 layer for `eu-central-1`
thanks!

Start by inspecting how this repository builds and publishes existing AWS Lambda layers for other Python versions or regions. Identify the configuration or scripts that define regional layers, then verify the completed layer is available in eu-central-1 for Python 3.8 or 3.9.

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