clangd-ubuntu-tsan: Add forgotten gRPC installation path
diff --git a/buildbot/osuosl/master/config/builders.py b/buildbot/osuosl/master/config/builders.py
index 6f1fe7b..0e5712b 100644
--- a/buildbot/osuosl/master/config/builders.py
+++ b/buildbot/osuosl/master/config/builders.py
@@ -1899,6 +1899,7 @@
              "-DCMAKE_BUILD_TYPE=Release",
              "-DCLANGD_ENABLE_REMOTE=ON",
              "-DLLVM_ENABLE_ASSERTIONS=ON",
+             "-DGRPC_INSTALL_PATH=/usr/local/lib/grpc"
          ])},