Switch to latest version of googletest.
Switch to latest version of googletest.

We had to use an intermediate version before that
fixed an issue. But now a new release is available.

Signed-off-by: Henner Zeller <259ad50fabbfd39355f36ecd6c0afca541ea66ef@acm.org>

chipsalliance/verible,chipsalliance/verible,chipsalliance/verible,chipsalliance/verible,chipsalliance/verible