PG16 got stricter in requiring PGDLLEXPORT on background worker functions.
2023-09-19 12:52:50.355 UTC [678337] ERROR: could not find function "pglogical_ticker_main" in file "/usr/lib/postgresql/16/lib/pglogical_ticker.so"
2023-09-19 12:52:50.357 UTC [678269] LOG: background worker "pglogical_ticker" (PID 678337) exited with exit code 1
PG16 got stricter in requiring PGDLLEXPORT on background worker functions.