[llvm] [bazel] add missing dep to errno_test_helpers (PR #132278)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libc

Author: Michael Jones (michaelrj-google)

<details>
<summary>Changes</summary>

Bazel doesn't complain, but downstream it's causing build failures.


---
Full diff: https://github.com/llvm/llvm-project/pull/132278.diff


1 Files Affected:

- (modified) utils/bazel/llvm-project-overlay/libc/test/UnitTest/BUILD.bazel (+1) 


``````````diff
diff --git a/utils/bazel/llvm-project-overlay/libc/test/UnitTest/BUILD.bazel b/utils/bazel/llvm-project-overlay/libc/test/UnitTest/BUILD.bazel
index 27e468ddeb5f5..b37ec19330236 100644
--- a/utils/bazel/llvm-project-overlay/libc/test/UnitTest/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/libc/test/UnitTest/BUILD.bazel
@@ -80,6 +80,7 @@ libc_test_library(
     ],
     deps = [
         ":LibcUnitTest",
+        "//libc:__support_macros_config",
         "//libc:errno",
     ],
 )

``````````

</details>


https://github.com/llvm/llvm-project/pull/132278