Fix Range._incLower default

It should include the lower bound if `_lower` is not `null` or
`undefined`

Author: scotttrinh

packages/driver/src/datatypes/range.ts

@@ -26,7 +26,7 @@ export class Range<
   constructor(
     private readonly _lower: T | null,
     private readonly _upper: T | null,
-    private readonly _incLower: boolean = true,
+    private readonly _incLower: boolean = _lower != null,
     private readonly _incUpper: boolean = false
   ) {}