semconv_grouped_metrics group by root namespace uses group.id instead of metric_name to determine root namespace

[lmolkova]

Try excluding v8js namespace

params:
  excluded_namespaces: [v8js]

templates:
  - pattern: semantic_metrics.j2
    filter: >
      semconv_grouped_metrics({
        "exclude_root_namespace": $excluded_namespaces
      })

As a result, v8js metrics will be generated in the file veightjs - since that's what is used in the group name.

Workaround

use excluded_namespaces: [v8js, veightjs]

(v8js is still needed because for attribute, root namespace is determined correctly)

Expected behavior
Group ID is not used to determine root namespace

Additional context
open-telemetry/semantic-conventions#1314

[lmolkova]

Same problem on events + both use group id to filter deprecated things:

https://github.com/open-telemetry/weaver/blob/4886aaf17e0f6b6d0725add2f3f793d25dd448ad/defaults/jq/semconv.jq#L70C20-L70C23