Bump submodules/googletest from 1d17ea1 to 34ad51b (#41)

Bumps [submodules/googletest](https://github.com/google/googletest) from
`1d17ea1` to `34ad51b`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/google/googletest/commit/34ad51b3dc4f922d8ab622491dd44fc2c39afee9"><code>34ad51b</code></a>
Add a bounds check to protect against an empty vector from GetArgs(),
which</li>
<li>See full diff in <a
href="https://github.com/google/googletest/compare/1d17ea141d2c11b8917d2c7d029f1c4e2b9769b2...34ad51b3dc4f922d8ab622491dd44fc2c39afee9">compare
view</a></li>
</ul>
</details>
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