Fixes#11451
A refactor of the Agent API passes metrics as protobufs, which include pointers to label name/value pairs. The aggregator tested for sameness by doing a shallow compare of label values, which for different stats reports would compare unequal because the pointers would be different.
This fix does a deep compare.
While testing I also noted that we neglect to compare template names. This is unlikely to have caused any issue in practice, since the combination of username/workspace is unique, but in the context of comparing metric labels we should do the comparison.
If a user creates a workspace, deletes it, then recreates from a different template, we could in principle have reported incorrect stats for the old template.
* chore: add /v2 to import module path
go mod requires semantic versioning with versions greater than 1.x
This was a mechanical update by running:
```
go install github.com/marwan-at-work/mod/cmd/mod@latest
mod upgrade
```
Migrate generated files to import /v2
* Fix gen
