Add sbom generation tooling cargo lock integration for rust and cdxgen (#2232)

Author: Lukasz-Juranek

sbom/BUILD.bazel

@@ -16,6 +16,8 @@ exports_files([
     "extensions.bzl",
     "repos.bzl",
     "repository_rules.bzl",
+    "crates_metadata.json",
+    "cpp_metadata.json",
 ])
 
 # Filegroup for all SBOM-related bzl files