fix(typescript-estree): fix invalid parsing error when use update expression on non-null assertion

[yeonjuan]

PR Checklist

• Addresses an existing open issue: fixes Bug: 6.18.0 breaks when parsing foo!-- #8201
• That issue was marked as accepting prs
• Steps in Contributing were taken

Overview

I tried to report this issue, but the same issue was already created. #8201 doesn't have an accepting PRS label yet, but I'm raising a PR because I think it's definitely a bug and I want it fixed quickly.

[typescript-eslint]

Thanks for the PR, @yeonjuan!

typescript-eslint is a 100% community driven project, and we are incredibly grateful that you are contributing to that community.

The core maintainers work on this in their personal time, so please understand that it may not be possible for them to review your work immediately.

Thanks again!

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[JoshuaKGoldberg]

Thanks!