Allowlist SBOM generation tool so it can be used in Bazel.

Bug: 275472038
Test: b build //build/make/tools/sbom:generate-sbom && bazel-out/aosp_cf_x86_64_phone-userdebug_linux_x86_64-opt/bin/build/make/tools/sbom/generate-sbom
(cherry picked from https://android-review.googlesource.com/q/commit:74e3e003148d202749cc79456e61f65ba1f4f25a)
Merged-In: I4ad68b0613410f40c79ee24d3eef779c2ad57815
Change-Id: I4ad68b0613410f40c79ee24d3eef779c2ad57815