Add `ui_auth_sessions_ips` table to `synapse_port_db` ignore list (#8410)

This table was created in #8034 (1.20.0).  It references
`ui_auth_sessions`, which is ignored, so this one should be too.

Signed-off-by: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>

changelog.d/8410.bugfix

+Fix a v1.20.0 regression in the `synapse_port_db` script regarding the `ui_auth_sessions_ips` table.

scripts/synapse_port_db

@@ -145,6 +145,7 @@ IGNORED_TABLES = {
     # the sessions are transient anyway, so ignore them.
     "ui_auth_sessions",
     "ui_auth_sessions_credentials",
+    "ui_auth_sessions_ips",
 }