Fix bazel after 18cf1cd92b554ba0b870c6a2223ea4d0d3c6dd21

mlir-config.h is included but not listed in dependencies
diff --git a/utils/bazel/llvm-project-overlay/mlir/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/BUILD.bazel
index 8818e55..0ae0465 100644
--- a/utils/bazel/llvm-project-overlay/mlir/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/mlir/BUILD.bazel
@@ -1032,6 +1032,7 @@
         ":CAPIAsyncHeaders",
         ":CAPIDebugHeaders",
         ":CAPIIRHeaders",
+        ":config",
         ":MLIRBindingsPythonHeaders",
         ":Support",
         "//llvm:Support",