Adopt log shipping via DevX logs

[akash1810]

Requires https://github.com/guardian/deploy-tools-platform/pull/738.

What does this change?

Adopts https://github.com/guardian/devx-logs to ship application logs to Central ELK. This change allows us to remove an application dependency (https://github.com/guardian/kinesis-logback-appender), ultimately reducing the volume of code in the repository.

Important

We'll lose the buildNumber log marker with this change.

How to test

• Deploy to CODE
• Observe logs appearing in Central ELK

Rollout

• Add required tags to the ASG (https://github.com/guardian/deploy-tools-platform/pull/738)
• Cycle the instance; the new one will have the new tag (this'll result in 502/504 responses from the load balancer, as Riff-Raff operates as a singleton instance)

  ssm cmd -t riff-raff,PROD -p deployTools --cmd "curl --silent -X POST localhost:9000/requestInstanceRotation"

• Merge

[github-actions]

Deploy build 3212 of tools::riffraff to CODE

All deployment options

• Deploy build 3212 of tools::riffraff to CODE
• Deploy parts of build 3212 to CODE by previewing it first
• What's on CODE right now?

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From guardian/actions-riff-raff.

[akash1810]

Confirming that PROD logs are appearing as expected.