Add converged agent deployment

[mackjmr]

Changes

Deploys converged agent to nodegroup ng-8 namespace converged-agent-staging. See data coming in:

• https://app.datadoghq.com/notebook/8831171/otel-staging-cluster
• https://app.datadoghq.com/apm/traces?query=env%3Aconverged-agent-staging&agg_m=count&agg_m_source=base&agg_t=count&cols=core_service%2Ccore_resource_name%2Clog_duration%2Clog_http.method%2Clog_http.status_code&fromUser=false&historicalData=false&messageDisplay=inline&sort=desc&spanType=all&view=spans&start=1722855482819&end=1722856382819&paused=false

Merge Requirements

For new features contributions please make sure you have completed the following
essential items:

• CHANGELOG.md updated to document new feature additions
• Appropriate documentation updates in the docs
• Appropriate Helm chart updates in the helm-charts

Maintainers will not merge until the above have been completed. If you're unsure
which docs need to be changed ping the
@open-telemetry/demo-approvers.