test: add test for frame count being 0.5

The frame count is between 1 and 200. Testing 0.5 will be testing
decimal fraction truncation to 0 which is still invalid range.

PR-URL: https://github.com/nodejs/node/pull/57732
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/parallel/test-util-getcallsites.js

@@ -47,6 +47,11 @@ const assert = require('node:assert');
   }, common.expectsError({
     code: 'ERR_OUT_OF_RANGE'
   }));
+  assert.throws(() => {
+    getCallSites(0.5);
+  }, common.expectsError({
+    code: 'ERR_OUT_OF_RANGE'
+  }));
   assert.throws(() => {
     getCallSites(-1);
   }, common.expectsError({