Inroduce `timeout` parameter into `xnnpack_unit_test`

PiperOrigin-RevId: 346369664
diff --git a/BUILD.bazel b/BUILD.bazel
index 0b7e8f0..21be676 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -6799,6 +6799,7 @@
 
 xnnpack_unit_test(
     name = "deconvolution_nhwc_test",
+    timeout = "moderate",
     srcs = [
         "test/deconvolution-nhwc.cc",
         "test/deconvolution-operator-tester.h",