Fix proc timeout reached error detection

[aliendrew]

Related to changes made in https://github.com/metarhia/metautil/commit/e4a521a49c0b16d02bfd42f06b2bed0a27d2bbed

• [x] tests and linter show no problems (npm t)
• [ ] tests are added/updated for bug fixes and new features
• [x] code is properly formatted (npm run fmt)
• [ ] description of changes is added in CHANGELOG.md
• [ ] update .d.ts typings

[aliendrew]

For example this api:

({
  parameters: {
    a: 'number',
    b: 'number',
  },
  timeout: 100,
  method: async ({ a, b }) => {
    const result = a + b;
    await node.timers.promises.setTimeout(150);
    return result;
  },

  returns: 'number',
});

will log client error: 500 Error: Timeout of 100ms reached but should be: 408 Error: Timeout of 100ms reached

[tshemsedinov]

To be landed after https://github.com/metarhia/metautil/pull/195

FYI: @aliendrew see changes in this PR and PR mentioned above