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.caddx/src/main/java/org/openhab/binding/caddx/internal/handler/CaddxBaseThingHandler.java

@@ -235,7 +235,7 @@ public abstract class CaddxBaseThingHandler extends BaseThingHandler {
         List<Channel> channels = getThing().getChannels();
 
         for (Channel ch : channels) {
-            if (channelUID == ch.getUID()) {
+            if (channelUID.equals(ch.getUID())) {
                 channel = ch;
                 break;
             }