gnu: tests: Fix timescaledb test.
The telemtry error message now looks like:
2025-11-08 11:04:23 localhost postgres[222]: [57-83]
2025-11-08 10:04:23.196 GMT [222] CONTEXT: SQL expression "telemetry_string"
2025-11-08 11:04:23 localhost postgres[222]: [57-84] PL/pgSQL function inline_code_block line 16 at RAISE
2025-11-08 11:04:23 localhost postgres[222]: [57-85]
2025-11-08 10:04:23.196 GMT [222] STATEMENT: CREATE EXTENSION timescaledb
2025-11-08 11:04:23 localhost postgres[234]: [8-1]
2025-11-08 10:04:23.267 GMT [234] LOG: job 3 threw an error
2025-11-08 11:04:23 localhost postgres[234]: [9-1]
2025-11-08 10:04:23.268 GMT [234] ERROR: functionality not supported under the current "apache" license. Learn more at https://timescale.com/.
2025-11-08 11:04:23 localhost postgres[234]: [9-2]
2025-11-08 10:04:23.268 GMT [234] HINT: To access all features and the best time-series experience, try out Timescale Cloud.
2025-11-08 11:04:23 localhost postgres[151]: [8-1]
2025-11-08 10:04:23.270 GMT [151] LOG: background worker "Job History Log Retention Policy [3]" (PID 234) exited with exit code 1
* gnu/tests/databases.scm (run-timescaledb-test): The error message is now
part of the syslog and not displayed by psql anymore.
Fixes: guix/guix#3551
Change-Id: I60a0615add53e30b9b26f760f5cacbbdbe14a36c