fix(nextjs): Remove polynomial regular expression

[github-actions]

Note

The pull request "fix(nextjs): Remove polynomial regular expression" was created by @s1gr1d but did not reference an issue. Therefore this issue was created for better visibility in external tools like Linear.

Check out the regex here: https://regex101.com/r/Tw2fuQ/1

Closes https://github.com/getsentry/sentry-javascript/security/code-scanning/419

[linear]

JS-1420