[K/N] Fix KT-49876

Use llvm-ar on Windows host when producing Linux static library.

kotlin-native/shared/src/main/kotlin/org/jetbrains/kotlin/konan/target/Linker.kt

@@ -337,8 +337,11 @@ class MacOSBasedLinker(targetProperties: AppleConfigurables)
 class GccBasedLinker(targetProperties: GccConfigurables)
     : LinkerFlags(targetProperties), GccConfigurables by targetProperties {
 
-    private val ar = if (HostManager.hostIsMac) "$absoluteTargetToolchain/bin/llvm-ar"
-        else "$absoluteTargetToolchain/bin/ar"
+    private val ar = if (HostManager.hostIsLinux) {
+        "$absoluteTargetToolchain/bin/ar"
+    } else {
+        "$absoluteTargetToolchain/bin/llvm-ar"
+    }
     override val libGcc = "$absoluteTargetSysRoot/${super.libGcc}"
 
     private val specificLibs = abiSpecificLibraries.map { "-L${absoluteTargetSysRoot}/$it" }