Add CA certificate configuration to SSL settings in tellupdater to complete mTLS setup

src/aare/daq/tellupdater.py

@@ -170,6 +170,7 @@ def main():
             ssl_settings = {
                 "certfile": "/etc/ssl/certs/secrets/mx-x10sa-queue-01.crt",
                 "keyfile": "/etc/ssl/certs/secrets/mx-x10sa-queue-01.key",
+                "ca_certs": "/etc/ssl/certs/secrets/mx-db-01_DigiCert_Global_Root_G2.pem",
                 "cert_reqs": ssl.CERT_REQUIRED
             }