Fix #873: On 64 bit x86 machines, os.arch may be x64 or x86-64

HMCL/src/main/java/org/jackhuang/hmcl/util/SelfDependencyPatcher.java

@@ -73,9 +73,10 @@ public class SelfDependencyPatcher {
 
         // We can only self-patch JavaFX on x86 platform.
         // For ARM support, user's manual patch is required.
-        switch (System.getProperty("os.arch")) {
+        switch (System.getProperty("os.arch", "unknown").toLowerCase()) {
             case "amd64":
-            case "x86":
+            case "x64":
+            case "x86-64":
                 break;
             default:
                 throw new IncompatibleVersionException();