chore: upgrade kafka-go version

[fearlessfei]

Upgrade Kafka-go version for Kafka 4.0 compatibility.

Greptile Summary

This PR upgrades the github.com/segmentio/kafka-go dependency from version 0.4.47 to 0.4.48 to add Kafka 4.0 compatibility. The change consists of updating two files:

1. go.mod: Updates the dependency declaration from v0.4.47 to v0.4.48
2. go.sum: Updates the corresponding checksums for integrity verification

The kafka-go library is a critical dependency for the kq package in this codebase, which implements Kafka-based message queuing functionality. The kq/queue.go file specifically uses this library to provide a Kafka queue implementation through the kafkaQueue struct that implements the queue.MessageQueue interface.

This is a patch-level version bump (0.4.47 → 0.4.48) within the same minor version, which typically indicates bug fixes, performance improvements, and infrastructure updates without breaking API changes. The upgrade ensures that users of the go-queue framework can work with newer Kafka 4.0 deployments while benefiting from the latest bug fixes and improvements in the underlying Kafka client library.

Confidence score: 4/5

• This PR is safe to merge with minimal risk as it's a patch version upgrade of a well-maintained library
• Score reflects that this is a conservative dependency update with no breaking changes expected and good compatibility track record
• Pay close attention to go.mod and go.sum files to ensure the checksums are correct, though they appear properly updated

[greptile-apps]

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