The ["topic's `max.message.bytes` less than the `max-message-bytes`..."] warning log should include the Kafka topic name and changefeed name

Is your feature request related to a problem?

When you start a changefeed with Kafka sink, and setting max-message-bytes higher than the topic's max.message.bytes, there will be a [WARN] level log like

[2026/02/10 21:31:29.459 +00:00] [WARN] [options.go:611] ["topic's `max.message.bytes` less than the `max-message-bytes`,use topic's `max.message.bytes` to initialize the Kafka producer"] [max.message.bytes=2097164] [max-message-bytes=10485760] [real-max-message-bytes=2097036]

while the topic and changefeed name can be inferred from the surrounding logs, it is harder to find out which log is involved when grepping by keyword alone.

Describe the feature you'd like

Include the topic name & changefeed name to https://github.com/pingcap/ticdc/blob/6ad7b6b65f0da5f34d3df8806b83c68009ff2e3b/pkg/sink/kafka/options.go#L631-L635

Describe alternatives you've considered

No response

Teachability, Documentation, Adoption, Migration Strategy

No response

Start in pkg/sink/kafka/options.go around lines 631-635 and inspect the warning emitted when the topic's max.message.bytes is lower than max-message-bytes. Update the warning context so it includes both the Kafka topic name and changefeed name. Done means the warning identifies both names when grepping logs.