Linker warnings starting in ubuntu 24.04

Starting with ubuntu 24.04, we're getting lots of linker warnings about a deprecated behavior:

```
/usr/bin/ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
/usr/bin/ld: warning: /home/runner/.local/share/racket/8.18/pkgs/langs/test-programs/abscond/1.o: missing .note.GNU-stack section implies executable stack
```