[material-ui] Change React.ReactElement<any,any> type from any to unknown

[sai6855]

Part of: #42380

since no one has taken up the issue since last 3 months, i opened PR fixed it

• I have followed (at least) the PR section of the contributing guide.

[mui-bot]

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[DiegoAndai]

Thanks for taking this @sai6855!

I could find other instances of ReactElement<any> still present. No need to cover them in this PR, but

• If we don't cover all cases, we should remove the "close" keyword in the description.
• If you wish to close the issue in this PR, then we should cover all cases. If you do, then skip the base/ and joy/.

Whatever option you prefer, let me know 😊

[sai6855]

I could find other instances of ReactElement<any> still present.

Ah okay, I've changed closes to part of. Regarding remaining instances, I'll open new PR as it will be easier for you to review

[sai6855]

@DiegoAndai opened follow up PR for some of left over instances #43402

[DiegoAndai]

Thanks @sai6855 😊