In read-only mode shouldn't apply dataset config

[zfy0701]

Describe the bug In read-only mode shouldn't apply dataset config

https://github.com/timescale/promscale/blob/9df822a114e08cce67f792e6289a022a08ee7044/pkg/runner/client.go#L168-L178

otherwise it reports:

{"caller":"runner.go:94","level":"info","msg":"Migrations disabled for read-only mode","ts":"2022-12-14T21:15:28.032Z"}
{"caller":"client.go:91","level":"info","msg":"Skipping migration","ts":"2022-12-14T21:15:28.032Z"}
{"caller":"client.go:105","level":"warn","msg":"skipping schema version lease","ts":"2022-12-14T21:15:28.032Z"}
{"caller":"config.go:63","level":"info","msg":"Setting metric dataset default chunk interval to 8h0m0s","ts":"2022-12-14T21:15:28.102Z"}
{"caller":"config.go:64","level":"info","msg":"Setting metric dataset default compression to true","ts":"2022-12-14T21:15:28.102Z"}
{"caller":"config.go:65","level":"info","msg":"Setting metric dataset default high availability lease refresh to 10s","ts":"2022-12-14T21:15:28.102Z"}
{"caller":"config.go:66","level":"info","msg":"Setting metric dataset default high availability lease timeout to 1m0s","ts":"2022-12-14T21:15:28.102Z"}
{"caller":"config.go:67","level":"info","msg":"Setting metric dataset default retention period to 2160h0m0s","ts":"2022-12-14T21:15:28.102Z"}
{"caller":"config.go:68","level":"info","msg":"Setting trace dataset default retention period to 720h0m0s","ts":"2022-12-14T21:15:28.102Z"}
{"caller":"runner.go:127","err":"error applying dataset configuration: ERROR: cannot execute INSERT in a read-only transaction (SQLSTATE 25006)","level":"error","msg":"aborting startup due to error","ts":"2022-12-14T21:15:28.104Z"}

To Reproduce run promscale connect to timescale replica

Expected behavior should be able to correctly connect to db

Screenshots If applicable, add screenshots to help explain your problem.

Configuration (as applicable)

• Promscale Connector:
• TimescaleDB:
• Prometheus:
• Jaeger:
• OpenTelemetry:

Version

• Distribution/OS:
• Promscale:
• TimescaleDB:

Additional context