Update logging_project_sink.html.markdown (#7963) (#5694)

Update comment to include log bucket sinks and project sinks

Signed-off-by: Modular Magician <[email protected]>

Author: modular-magician

.changelog/7963.txt

@@ -0,0 +1,6 @@
+```release-note:enhancement
+Update comment to include log bucket sinks and project sinks
+```
+```release-note:none
+
+```

website/docs/r/logging_project_sink.html.markdown

@@ -24,7 +24,7 @@ Manages a project-level logging sink. For more information see:
 resource "google_logging_project_sink" "my-sink" {
   name = "my-pubsub-instance-sink"
 
-  # Can export to pubsub, cloud storage, or bigquery
+  # Can export to pubsub, cloud storage, bigquery, log bucket, or another project
   destination = "pubsub.googleapis.com/projects/my-project/topics/instance-activity"
 
   # Log all WARN or higher severity messages relating to instances