btfdump: init at 0.0.4

This is required to run tests for bpf-linker

pkgs/by-name/bt/btfdump/package.nix

···
+{
+  lib,
+  stdenv,
+  rustPlatform,
+  fetchCrate,
+  cargo-hack,
+  rustc,
+  zlib,
+  libxml2,
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "btfdump";
+  version = "0.0.4";
+
+  src = fetchCrate {
+    inherit pname version;
+    hash = "sha256-iLYGFXB4goiY7eJXXBhX9Y1TOltsW40ogeBhvTV2NvU=";
+  };
+
+  cargoHash = "sha256-uGp9XaqepceUmaEKBVEcu8oorfMAOk8BCPIHtun8Sto=";
+
+  meta = {
+    description = "BTF introspection tool";
+    mainProgram = "btf";
+    homepage = "https://github.com/anakryiko/btfdump";
+    license = with lib.licenses; [ bsd2 ];
+    maintainers = [ ];
+  };
+}