Disable failing windows nightly test until fixed (#5648)

Those tests have been failing on a certain Windows runner since a long
time, I am disabling them until fixed.
 
Related to CORE-328

---
TYPE: NO_HISTORY

Author: ypatia

test/src/unit-sparse-global-order-reader.cc

@@ -1499,6 +1499,11 @@ TEST_CASE_METHOD(
     CSparseGlobalOrderFx,
     "Sparse global order reader: fragment skew",
     "[sparse-global-order][rest]") {
+#ifdef _WIN32
+  SKIP(
+      "CORE-328: This test fails on nightly [windows-latest - Sanitizer: OFF | "
+      "Assertions: ON | Debug] To re-enable when fixed.");
+#endif
   SECTION("Example") {
     instance_fragment_skew<tiledb::test::AsserterCatch>(200, 8, 2);
   }
@@ -1842,6 +1847,11 @@ TEST_CASE_METHOD(
     CSparseGlobalOrderFx,
     "Sparse global order reader: merge bound duplication",
     "[sparse-global-order][rest]") {
+#ifdef _WIN32
+  SKIP(
+      "CORE-328: This test fails on nightly [windows-latest - Sanitizer: OFF | "
+      "Assertions: ON | Debug] To re-enable when fixed.");
+#endif
   SECTION("Example") {
     instance_merge_bound_duplication<tiledb::test::AsserterCatch>(
         16, 16, 1024, 16, false);