Standardize docker image names

[MikeGoldsmith]

We have two formats for our docker images;

• built locally using Makefile: otel-instrumentation-go
• built in CI workflow and published to github & docker hub: autoinstrumentation-go

We should have one format and consolidate them to be consistent. It's useful to have the otel prefix for locally built images but not required for published images because they have the repository prefix.

I didn’t see this before, but we use a different default name in the makefile than here. https://github.com/open-up/opentelemetry-go-instrumentation/blob/main/Makefile#L33

It would be nice to use the same name. Locally it’s good to have the otel prefix so it’s easy to find but not as important for published images as it gets prefix from the image store. 

I don’t want to block this PR to bike shed on names so will create a follow-up issue to track our image naming.

Originally posted by @MikeGoldsmith in https://github.com/open-telemetry/opentelemetry-go-instrumentation/pull/152#discussion_r1189469925

[MrAlias]

From SIG:

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