Include `cmake/generate_cmake_from_bazel.py` in a BUILD rule.

PiperOrigin-RevId: 907170306

fuzztest/BUILD

diff --git a/fuzztest/BUILD b/fuzztest/BUILD
index 2cb687d..0315b15 100644
--- a/fuzztest/BUILD
+++ b/fuzztest/BUILD
@@ -257,3 +257,12 @@
         "@googletest//:gtest",
     ],
 )
+
+# Explicitly exempt the file from checks for a corresponding Bazel rule, since
+# this is an experimental script.
+filegroup(
+    name = "generate_cmake_from_bazel",
+    srcs = ["cmake/generate_cmake_from_bazel.py"],
+    tags = ["ignore_srcs"],
+    visibility = ["//visibility:private"],
+)