cleanup: fix typo: libraries, not libaries (#1127)

Silent r's are tricky.

tests/BUILD.bazel

diff --git a/tests/BUILD.bazel b/tests/BUILD.bazel
index f5133c4..a196d2a 100644
--- a/tests/BUILD.bazel
+++ b/tests/BUILD.bazel
@@ -13,7 +13,7 @@
 )
 
 build_test(
-    name = "bzl_libaries_build_test",
+    name = "bzl_libraries_build_test",
     targets = [
         # keep sorted
         "//python:current_py_toolchain_bzl",