Add missing entitlements found by unit tests

Author: prdoyle

x-pack/plugin/core/src/main/plugin-metadata/entitlement-policy.yaml

@@ -18,6 +18,7 @@ org.apache.httpcomponents.httpasyncclient:
   - manage_threads
 unboundid.ldapsdk:
   - set_https_connection_properties # TODO: review if we need this once we have proper test coverage
+  - inbound_network # For com.unboundid.ldap.listener.LDAPListener
   - outbound_network
   - manage_threads
   - write_system_properties:

x-pack/plugin/monitoring/src/main/plugin-metadata/entitlement-policy.yaml

@@ -1,5 +1,6 @@
 ALL-UNNAMED:
   - set_https_connection_properties # potentially required by apache.httpcomponents
+  - manage_threads # For org.elasticsearch.client.snif.Sniffer
   # the original policy has java.net.SocketPermission "*", "accept,connect"
   # but a comment stating it was "needed for multiple server implementations used in tests"
   # TODO: this is likely not needed, but including here to be on the safe side until