[Link][joy-ui] Fix font inherit

[oliviertassinari]

The reproduction https://codesandbox.io/s/nostalgic-solomon-dmwxr3?file=/Demo.tsx

import * as React from "react";
import Box from "@mui/joy/Box";
import Link from "@mui/joy/Link";

export default function LinkLevels() {
  return (
    <Box sx={{ fontWeight: 800 }}>
      <Link level="inherit" component="button">
        Link
      </Link>
    </Box>
  );
}

Actual

Expected

Same fix as #38123

[mui-bot]

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https://deploy-preview-38124--material-ui.netlify.app/

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