Update charts to push logs to dynamic index

opentelemetry-collector-contrib got a release v0.78.0 ("elasticsearchexporter: Add dynamic indexing option to elasticsearchexporter - #5854" [1])

This should allow to adapt the current chart to stop indexing data in one index (staging-system-logs, stating-swh-logs, ...). And instead dispatch logs to daily indices as we used to do with the previous static stack (staging-system-logs-$day, staging-swh-logs-$day, ...).

• Develop
• Test in minikube
• Deploy and test in staging
• Loop, fix papercuts, deploy ^
• Deploy in production
• Drop noisy indices

[1] https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.78.0