Correctly filter URL with an email address in it

[krystofwoldrich]

Description

Based on #1412 (comment)

This function doesn't filter out email addresses in URLs correctly.

sentry-dart/dart/lib/src/utils/http_sanitizer.dart

Lines 63 to 75 in c4f1621

	static String _urlWithAuthRemoved(String url) {
	final userInfoMatch = _authRegExp.firstMatch(url);
	if (userInfoMatch != null && userInfoMatch.groupCount == 3) {
	final userInfoString = userInfoMatch.group(2) ?? '';
	final replacementString = userInfoString.contains(":")
	? "[Filtered]:[Filtered]@"
	: "[Filtered]@";
	return '${userInfoMatch.group(1) ?? ''}$replacementString${userInfoMatch.group(3) ?? ''}';
	} else {
	return url;
	}
	}
	}

Example URL: staging.server.com/api/v4/auth/password/reset/[email protected]

The output is https://[Filtered]@example.com but @example.com is part of the email and not the URL or userInfo.

[marandaneto]

Btw also add tests for other symbols that may break the parsing or Regex, maybe there are more cases besides @.