update jenkins build-timeout plugin

Updating the jenkins build-timeout plugin to get a new feature[1] that
allows exposing the build timeout value as an environment variable.

[1] https://github.com/jenkinsci/build-timeout-plugin/pull/22
Closes-Bug: #1287883

Change-Id: I1fd0d132f44e511c283b62f194451c0ca7080305
Merge "update jenkins build-timeout plugin"