linter: no-invalid-fetch-options should ignore non static `method`

[Boshen]

For https://github.com/oxc-project/oxc/blob/main/crates/oxc_linter/src/rules/unicorn/no_invalid_fetch_options.rs

It seems like we are missing a case for https://github.com/sindresorhus/eslint-plugin-unicorn/blob/b70d1e8eb5660f76d023ea5a48127ad73c6419d9/rules/no-invalid-fetch-options.js#L57

const response = await fetch('', {
  method,
  headers,
  body,
});