jupyter-renderers: [3.1.0rc2] `jupyterlab-fasta` fails to render: `t.on is not a function`

Description

The jupyterlab-fasta extension does not work with 3.1.0rc2

Reproduce

Can be reproduced with this gist:

• https://gist.github.com/jtpio/844ab4e85ae84f230cbcb0e56a59c88e
• https://mybinder.org/v2/gist/jtpio/844ab4e85ae84f230cbcb0e56a59c88e/master?urlpath=/lab

Expected behavior

The jupyterlab-fasta extensions should work out of the box with JupyterLab 3.1.

Context

Originally reported by @bollwyvl in https://github.com/jupyterlite/jupyterlite/issues/284

• Operating System and version: Ubuntu 20.04
• Browser and version: Firefox 89
• JupyterLab version: 3.1.0rc2

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Originally opened as jupyterlab/jupyterlab#10675 by @jtpio, migration requested by @blink1073