Install bazel when reimaging windows slave
Install bazel when reimaging windows slave

Change-Id: I11fe546e3c0fe9d3baf669219f847242535a3e21

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