Skip flaky tests on windows for cloudspanner receiver (open-telemetry…

…#36683)

<!--Ex. Fixing a bug - Describe the bug and how this fixes the issue.
Ex. Adding a feature - Explain what this achieves.-->
#### Description

<!-- Issue number (e.g. open-telemetry#1234) or full URL to issue, if applicable. -->
#### Link to tracking issue
Part of
open-telemetry#32397

<!--Describe what testing was performed and which tests were added.-->
#### Testing

<!--Describe the documentation added.-->
#### Documentation

<!--Please delete paragraphs that you did not use before submitting.-->

receiver/googlecloudspannerreceiver/internal/filter/itemcardinality_test.go

@@ -240,6 +240,9 @@ func TestItemCardinalityFilter_FilterItems(t *testing.T) {
 }
 
 func TestItemCardinalityFilter_IncludeItem(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("Skipping test on Windows due to https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/32397")
+	}
 	timestamp := time.Now().UTC()
 	item1 := &Item{SeriesKey: key1, Timestamp: timestamp}
 	item2 := &Item{SeriesKey: key2, Timestamp: timestamp}