disable Test on aarch64 (#24389)

ref https://github.com/nim-lang/Nim/issues/24287

(cherry picked from commit 1576563775)

tests/compiler/tasm.nim

@@ -1,3 +1,7 @@
+discard """
+disabled: "arm64"
+"""
+
 proc testAsm() =
   let src = 41
   var dst = 0
@@ -12,4 +16,4 @@ proc testAsm() =
 
 when defined(gcc) or defined(clang) and not defined(cpp):
   {.passc: "-std=c99".}
-  testAsm()
+  testAsm()