[roll] Roll fuchsia [docs][fidl] Fix test command in llcpp tutorial
The included BUILD.gn for the llcpp declares the unittest_package as
fidl-example-llcpp-test so the test invocation should match that.
```
~/fuchsia ▶ fx set workstation.qemu-x64 --with //examples/fidl/llcpp/unittests:fidl-example-llcpp-test
~/fuchsia ▶ fx build
~/fuchsia ▶ fx test -vo fidl_example_llcpp_test
...
Found 45 total tests in //out/default/tests.json
Could not find any tests to run with the arguments you provided.
...
~/fuchsia ▶ fx test -vo fidl-example-llcpp-test
...
Found 45 total tests in //out/default/tests.json
Will run 1 test
...
🎉 Ran 1 tests with 0 failures 🎉
```
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/649791
Original-Revision: 698b7effaee44c74aa4e6c545ccf02b0e56b5aa0
GitOrigin-RevId: 37e6d147e1b7e2cd1e1a845f5b31b40ba0ea3662
Change-Id: I4a27b568df1afabcca67ce6e13d13fd8c5c8d4de
diff --git a/stem b/stem
index edc9b2d..0dcdbab 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
githooks=""
remote="https://fuchsia.googlesource.com/fuchsia"
gerrithost="https://fuchsia-review.googlesource.com"
- revision="913a35686098ebe9a327f76b114e550c85436c1b"/>
+ revision="698b7effaee44c74aa4e6c545ccf02b0e56b5aa0"/>
</projects>
<hooks>
<hook name="install-environment"
