[arrow] remove windows dependency for mimalloc feature (#46299)

ports/arrow/vcpkg.json

@@ -1,6 +1,7 @@
 {
   "name": "arrow",
   "version": "20.0.0",
+  "port-version": 1,
   "description": "Cross-language development platform for in-memory analytics",
   "homepage": "https://arrow.apache.org",
   "license": "Apache-2.0",
@@ -105,8 +106,7 @@
       ]
     },
     "mimalloc": {
-      "description": "mimalloc allocator",
-      "supports": "windows"
+      "description": "mimalloc allocator"
     },
     "orc": {
       "description": "ORC support",

versions/a-/arrow.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "ea170f76e42c4946d71e1473e51dc90cc1491d55",
+      "version": "20.0.0",
+      "port-version": 1
+    },
     {
       "git-tree": "307efc99a4626033510b9823a0205558547a53f5",
       "version": "20.0.0",

versions/baseline.json

@@ -258,7 +258,7 @@
     },
     "arrow": {
       "baseline": "20.0.0",
-      "port-version": 0
+      "port-version": 1
     },
     "arrow-adbc": {
       "baseline": "16",