Add logLevel as an SDK init option

[EduardoSimon]

Is your feature request related to a problem? Please describe.

Hi folks 👋🏼 ,
I am creating a small library wrapping the SDK to standardize its usage within my company. As we use a custom Otel collector, we need to disable the options validation by providing the skipOptionsValidation flag in the sdk instantiation. However, as a result a debug log is printed to the console. In the browser its not such a big deal, as the debug log level is disabled by default, nevertheless when running tests in node, the stdout gets cluttered with those debug messages.

Describe the solution you'd like

I was wondering if you would consider adding a logLevel flag to the sdk so we can set it to info or error when running in test mode. I've checked the source code, identifying the location in which a custom logger could be used. Let me know if you might accept PRs with it or how the contribution process works.

Describe the alternatives

For now I've found a workaround by monkey patching the global console object and disallowing any debug call.

const originalConsole = globalThis.console;

globalThis.console = {
  ...originalConsole,
  debug: () => {}
};

Note: We use the latest version of Node, that's why we use the globalThis object.