fix: Add ctypes-foreign as a dependency of Rune on Linux (#64)

Author: sidkshatriya

dune-project

@@ -125,11 +125,8 @@
    (= :version))
   (ctypes
    (>= 0.21.0))
-  ; rune.jit.metal
   (ctypes-foreign
-   (and
-    (>= 0.21.0)
-    (= :os macos)))
+   (>= 0.21.0))
   (alcotest :with-test)))
 
 (package

rune.opam

@@ -14,7 +14,7 @@ depends: [
   "dune" {>= "3.19"}
   "nx" {= version}
   "ctypes" {>= "0.21.0"}
-  "ctypes-foreign" {>= "0.21.0" & os = "macos"}
+  "ctypes-foreign" {>= "0.21.0"}
   "alcotest" {with-test}
   "odoc" {with-doc}
 ]