Add container automation for auto instrumentation

[Mpdreamz]

• Add container automation for autoinstrumentation.
• move release targets after container push

[v1v]

Wonder if you want to add some extra labels noting this is coming from Elastic or something like that:

• https://github.com/docker/metadata-action/#customizing

labels: |
  org.opencontainers.image.title=elastic-otel-dotnet
  org.opencontainers.image.description=Autoinstrument
  org.opencontainers.image.vendor=Elastic

[Mpdreamz]

Added the metadata @v1v 👍