[follow up] update of `message Location`

[florianl]

With https://github.com/open-telemetry/semantic-conventions/pull/1188 a semantic convention will be introduced for profiles. These new attributes should be used as replacement for message Location.type_index, which will be removed with https://github.com/open-telemetry/opentelemetry-proto/pull/578.

Once a new version of OTel semantic convention is released, that includes https://github.com/open-telemetry/semantic-conventions/pull/1188, package reporter should be updated and

1. Remove Location.TypeIndex - see https://github.com/open-telemetry/opentelemetry-ebpf-profiler/blob/c96e12686646b106e9cc88a42d7551018062250c/reporter/otlp_reporter.go#L556-L557
2. Use these new attributes in message Location

[Rajamanosankari]

I would like to work on this.

[florianl]

Location.TypeIndex will be removed with https://github.com/open-telemetry/opentelemetry-ebpf-profiler/pull/167/ and replaced with semantic convention attributes.

[florianl]

Closing as resolved with https://github.com/open-telemetry/opentelemetry-ebpf-profiler/pull/167