chore: deprecate use of old columns in traces

[makeavish]

close: #42

[srikanthccv]

Did we ever directly communicate with the users via some notification that we are deprecating these? This change should be preceded by identifying the views/dashboards/alerts that used the deprecated columns and automatically migrating them as much as possible. Otherwise, I think this will lead to issues as it removes some top-level columns users might have used in the product.

[makeavish]

Did we ever directly communicate with the users via some notification that we are deprecating these? This change should be preceded by identifying the views/dashboards/alerts that used the deprecated columns and automatically migrating them as much as possible. Otherwise, I think this will lead to issues as it removes some top-level columns users might have used in the product.

We had a warning in our docs for a very long time: SigNoz/signoz.io#764
Component attribute existed since opentracing so it wouldn't have any values. grpcCode, grpcMethod, httpCode, tagMap were not returned as an attribute so users wouldn't have used them in views/dashboard built with query builder.
For clickhouse builder users had to read docs to know columns they can use and would have saw warnings.

Only concern might be externalHttpMethod and externalHttpUrl.

[srikanthccv]

Only concern might be externalHttpMethod and externalHttpUrl

May be let's exclude these for now and continue with the rest of the changes?