test: add presubmit to verify java_library requirements file (#1701) (#1080)
test: add presubmit to verify java_library requirements file (#1701) (#1080)

* test: add presubmit to verify java_library requirements file

Source-Link: https://github.com/googleapis/synthtool/commit/d14818215edae9910959439def57cf180d58f4c9
Post-Processor: 48d5800083e04fbe06b7d85b0e411aebd73b5710@sha256:27d0a1232b3656f0610cc1a55beb157cb3b63b1ca8b3dfba0bcd8b9dfecda4a1

Co-authored-by: Owl Bot <7f39581e9a7ddb69f3fa3e6fc69a582ea2916fc9@users.noreply.github.com>
Co-authored-by: Diego Alonso Marquez Palacios <10508b2cf21784d8ad6cf3c79d3cfbef487023ad@google.com>
googleapis/google-auth-library-java,googleapis/google-auth-library-java,googleapis/google-auth-library-java