use updated astring generator

[barelyhuman]

What kind of change does this PR introduce?

Enhancement / Fix

What is the current behavior?

JSXFragment, JSXSpreadAttributes will not be rendered properly

What is the new behavior?

Handles the above with added code in the original library

What steps did you take to test this? This is required before we can merge, make sure to test the flow you've updated.

N/A

Checklist

• Documentation - N/A
• Testing
• Ready to be merged
• Added myself to contributors table

Waiting on the instruction, to do the above if the team still uses the babel transpiler and is not already handling the above mentioned Tokens elsewhere

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[CompuIves]

Hey! Thanks for the contribution, do you have an example where we're currently not parsing/rendering this correctly?

[barelyhuman]

Not sure, I didn't go through the entire codebase but the reason for update was the missing JSXEmptyExpression and JSXFragment writers missing in the original code which was derived from v0.1.x of astring-jsx which hasn't been updated with the new additions in acorn-jsx