Mark cargo-asm unmaintained

Author: jayvdb

crates/cargo-asm/RUSTSEC-0000-0000.md

@@ -0,0 +1,19 @@
+```toml
+[advisory]
+id = "RUSTSEC-0000-0000"
+package = "cargo-asm"
+date = "2025-11-17"
+url = "https://github.com/gnzlbg/cargo-asm/issues/244"
+informational = "unmaintained"
+
+[versions]
+patched = []
+```
+
+# cargo-asm crate is unmaintained
+
+The `cargo-asm` crate is deprecated and no longer actively maintained. If you rely on this crate, consider switching to a recommended alternative.
+
+## Recommended alternatives
+
+- [`cargo-show-asm`](https://crates.io/crates/cargo-show-asm)