Fix imported build of Tcl/Tk 8.6.11 (previous version was actually 8.6.10)

win32/lib/tcl8.6/tzdata/Antarctica/Casey

@@ -9,4 +9,9 @@ set TZData(:Antarctica/Casey) {
     {1329843600 28800 0 +08}
     {1477065600 39600 0 +11}
     {1520701200 28800 0 +08}
+    {1538856000 39600 0 +11}
+    {1552752000 28800 0 +08}
+    {1570129200 39600 0 +11}
+    {1583596800 28800 0 +08}
+    {1601740860 39600 0 +11}
 }