Use pending version of substrait-cpp which uses updated substrait repo.

EpsilonPrime · EpsilonPrime · commit 791fc1437302 · 2024-02-14T01:10:03.000-08:00
diff --git a/third_party/substrait-cpp b/third_party/substrait-cpp
@@ -1 +1 @@
-Subproject commit c6caaab939f9525be80e1afc90940a40b3702439
+Subproject commit 83e732e19d55a1572c00ca27ecf15cfcbafe6f22
