BUG: date_range closed keyword with timezone aware start/end (GH12684)
closes #12684

lgtm
 ## [Current coverage](https://codecov.io/gh/pydata/pandas/pull/13510?src=pr) is **84.33%**

> Merging [#13510](https://codecov.io/gh/pydata/pandas/pull/13510?src=pr) into [master](https://codecov.io/gh/pydata/pandas/branch/master?src=pr) will increase coverage by **<.01%**

``` diff
@@             master     #13510   diff @@
==========================================
  Files           138        138          
  Lines         51107      51111     +4   
  Methods           0          0          
  Messages          0          0          
  Branches          0          0          
==========================================
+ Hits          43103      43107     +4   
  Misses         8004       8004          
  Partials          0          0          
```

> Powered by [Codecov](https://codecov.io?src=pr). Last updated by [bf4786a...d5744f7](https://codecov.io/gh/pydata/pandas/compare/bf4786a15f51d14ccf1318e44ae080868d8595ee...d5744f7f8df643b6aaf1befeeafcd33d4ed0a831)
