[💡 FEATURE REQUEST]: Expose TimerOptions for new timers

### Plugin

Temporal

### I have an idea!

An experimental feature has been added to the go-sdk for adding metadata to timer starts.
We need to provide a compatible way to map `TimerOptions` when starting a timer from the PHP SDK.

Related:
https://github.com/temporalio/sdk-go/pull/1597
https://github.com/temporalio/sdk-php/issues/517