[dartsim] remove freeglut dependency from osx (#44859)

ports/dartsim/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "dartsim",
   "version": "6.15.0",
-  "port-version": 3,
+  "port-version": 4,
   "description": "Dynamic Animation and Robotics Toolkit",
   "homepage": "https://dartsim.github.io/",
   "license": "BSD-2-Clause",
@@ -45,7 +45,10 @@
             "utils"
           ]
         },
-        "freeglut",
+        {
+          "name": "freeglut",
+          "platform": "!osx"
+        },
         "opengl"
       ]
     },

versions/baseline.json

@@ -2222,7 +2222,7 @@
     },
     "dartsim": {
       "baseline": "6.15.0",
-      "port-version": 3
+      "port-version": 4
     },
     "dataframe": {
       "baseline": "3.5.0",

versions/d-/dartsim.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "42f1f18c4f7de32f547eb03a55d669b8bb7fa16f",
+      "version": "6.15.0",
+      "port-version": 4
+    },
     {
       "git-tree": "afebd3545c9b535103677bc20adab17f8612f18d",
       "version": "6.15.0",