Upgrade javapoet to javapoet-1.13.0 am: fc695240b7 am: 58d780c682 am: d20f30f913

Original change: https://android-review.googlesource.com/c/platform/external/javapoet/+/1360668

Change-Id: I940dafe1c4a4f55a2c885f842bb7f09f5f76d08f