clang: Suppress a new warning in sqlite.

third_party/sqlite/BUILD.gn

Index: third_party/sqlite/BUILD.gn
diff --git a/third_party/sqlite/BUILD.gn b/third_party/sqlite/BUILD.gn
index 602a84f48eb9d620b7d133213469c8e8900714e0..be3f2d65b5d41344f0fda39759d7e9b95628352c 100644
--- a/third_party/sqlite/BUILD.gn
+++ b/third_party/sqlite/BUILD.gn
@@ -83,6 +83,9 @@ source_set("sqlite") {
       "-Wno-empty-body",
       # sqlite has some `unsigned < 0` checks.
       "-Wno-tautological-compare",
+      # Needed because we don't have this commit yet:
+      # https://github.com/mackyle/sqlite/commit/25df0fa050dcc9be7fb937b8e25be24049b3fef0
+      "-Wno-pointer-bool-conversion",
     ]
   }