test: mark test-inspector flaky on windows

PR-URL: https://github.com/nodejs/node/pull/8835
Reviewed-By: Eugene Ostroukhov <eostroukhov@google.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

test/inspector/inspector.status

@@ -0,0 +1,10 @@
+prefix inspector
+
+# To mark a test as flaky, list the test name in the appropriate section
+# below, without ".js", followed by ": PASS,FLAKY". Example:
+# sample-test                        : PASS,FLAKY
+
+[true] # This section applies to all platforms
+
+[$system==win32]
+test-inspector  : PASS,FLAKY