feat: show libcurl version

Author: steve-chavez

src/worker.c

@@ -421,7 +421,7 @@ _PG_init(void)
 	worker.bgw_start_time = BgWorkerStart_RecoveryFinished;
 	snprintf(worker.bgw_library_name, BGW_MAXLEN, "pg_net");
 	snprintf(worker.bgw_function_name, BGW_MAXLEN, "worker_main");
-	snprintf(worker.bgw_name, BGW_MAXLEN, "pg_net " EXTVERSION " worker");
+	snprintf(worker.bgw_name, BGW_MAXLEN, "pg_net " EXTVERSION " worker using %s", curl_version());
 	worker.bgw_restart_time = 1;
 	worker.bgw_main_arg = (Datum) 0;
 	worker.bgw_notify_pid = 0;

test/test_worker_version.py

@@ -0,0 +1,16 @@
+from sqlalchemy import text
+import pytest
+import time
+
+def test_showing_worker_libcurl_version(sess):
+    """the backend type shows the worker version and the libcurl version"""
+
+    # wait for worker to start in case another test restarted it
+    time.sleep(1)
+
+    (result,) = sess.execute(
+        """
+        select backend_type like 'pg_net % worker using libcurl%' from pg_stat_activity where backend_type like '%pg_net%';
+        """
+    ).fetchone()
+    assert result is True