Install patch command on Windows slaves
Install patch command on Windows slaves

Change-Id: Iebaffc01da6bd675e6add1ca5b6780a16b332beb

bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration,bazelbuild/continuous-integration