Fix/suppress PMD CompareObjectsWithEquals findings (#11476)

Newer PMD versions discover more CompareObjectsWithEquals findings.

Related to https://github.com/openhab/static-code-analysis/pull/423

Signed-off-by: Wouter Born <github@maindrain.net>

bundles/org.openhab.binding.amazondashbutton/src/main/java/org/openhab/binding/amazondashbutton/internal/capturing/PacketCapturingService.java

@@ -137,6 +137,7 @@ public class PacketCapturingService {
      * @param packet The packet to be checked
      * @return Returns true, if the packet should be captured, otherwise false
      */
+    @SuppressWarnings("PMD.CompareObjectsWithEquals")
     private boolean shouldCapture(final Packet packet) {
         if (packet.contains(ArpPacket.class)) {
             ArpPacket arpPacket = packet.get(ArpPacket.class);