Update to error_prone 2.0.19

Match what we were previously using.

Bug: 64489631
Test: m -j RUN_ERROR_PRONE=true checkbuild
Change-Id: Ia1c0df442f93253df7b238bb07af6cd1c3424aac
17 files changed
tree: 7222688f0efe074990c4b21715d8ff0c541b06cc
  1. checkerframework/
  2. error_prone/
  3. javac/
  4. jFormatString/