Memo does not go through user provided data coverter

[Quinn-With-Two-Ns]

Expected Behavior

Go to use the user provided data converter like other SDKs to encode memos when creating workflow and schedules.

Actual Behavior

sdk-go/internal/internal_workflow_client.go

Lines 1310 to 1311 in 0b0234f

	// TODO (shtin): use dc here???
	memoBytes, err := converter.GetDefaultDataConverter().ToPayload(v)

Go uses the default data converter.

Need to decide how we will fix this as changing is not backwards compatible and could break running workflows