Fix common Windows failure (#10397)

The `getNonLoopBackIP` may grab an IP from an interface that
doesn't allow binding (on Windows), so this test consistently fails.

We exclude that specific error.

cmd/http/listener_test.go

@@ -186,6 +186,10 @@ func TestHTTPListenerStartClose(t *testing.T) {
 			testCase.serverAddrs,
 		)
 		if err != nil {
+			if strings.Contains(err.Error(), "The requested address is not valid in its context") {
+				// Ignore if IP is unbindable.
+				continue
+			}
 			t.Fatalf("Test %d: error: expected = <nil>, got = %v", i+1, err)
 		}
 
@@ -225,6 +229,10 @@ func TestHTTPListenerAddr(t *testing.T) {
 			testCase.serverAddrs,
 		)
 		if err != nil {
+			if strings.Contains(err.Error(), "The requested address is not valid in its context") {
+				// Ignore if IP is unbindable.
+				continue
+			}
 			t.Fatalf("Test %d: error: expected = <nil>, got = %v", i+1, err)
 		}
 
@@ -261,6 +269,10 @@ func TestHTTPListenerAddrs(t *testing.T) {
 			testCase.serverAddrs,
 		)
 		if err != nil {
+			if strings.Contains(err.Error(), "The requested address is not valid in its context") {
+				// Ignore if IP is unbindable.
+				continue
+			}
 			t.Fatalf("Test %d: error: expected = <nil>, got = %v", i+1, err)
 		}