fix: add renamed test back

tests/conf_callbacks_rdkafka11.phpt

@@ -0,0 +1,39 @@
+--TEST--
+RdKafka\Conf
+--SKIPIF--
+<?php
+RD_KAFKA_VERSION >= 0x010100ff || die("skip librdkafka too old");
+--FILE--
+<?php
+
+$conf = new RdKafka\Conf();
+
+echo "Setting consume callback\n";
+$conf->setConsumeCb(function () { });
+$dump = $conf->dump();
+var_dump(isset($dump["consume_cb"]));
+
+echo "Setting offset_commit callback\n";
+$conf->setOffsetCommitCb(function () { });
+$dump = $conf->dump();
+var_dump(isset($dump["offset_commit_cb"]));
+
+echo "Setting rebalance callback\n";
+$conf->setRebalanceCb(function () { });
+$dump = $conf->dump();
+var_dump(isset($dump["rebalance_cb"]));
+
+echo "Setting oauth token bearer callback\n";
+$conf->setOauthbearerTokenRefreshCb(function () {});
+$dump = $conf->dump();
+var_dump(isset($dump["oauthbearer_token_refresh_cb"]));
+
+--EXPECT--
+Setting consume callback
+bool(true)
+Setting offset_commit callback
+bool(true)
+Setting rebalance callback
+bool(true)
+Setting oauth token bearer callback
+bool(true)