Java: Update expected test results after extractor changes

java/ql/integration-tests/java/buildless-sibling-projects/diagnostics.expected

@@ -1,3 +1,18 @@
+{
+  "attributes": {},
+  "markdownMessage": "Internal telemetry for the Java extractor.\n\nNo action needed.",
+  "severity": "note",
+  "source": {
+    "extractorName": "java",
+    "id": "java/extractor/summary",
+    "name": "Java extractor telemetry"
+  },
+  "visibility": {
+    "cliSummaryTable": false,
+    "statusPage": false,
+    "telemetry": true
+  }
+}
 {
   "markdownMessage": "Java analysis dropped the following dependencies because a sibling project depends on a higher version:\n\n* `junit/junit-4.11`",
   "severity": "unknown",