By default a new trace is automatically started when a job is processed
by monitoring these events:
* `[:oban, :job, :start]` — at the point a job is fetched from the database and will execute
* `[:oban, :job, :stop]` — after a job succeeds and the success is recorded in the database
* `[:oban, :job, :exception]` — after a job fails and the failure is recorded in the database
To also record a span when a job is created and to link traces together
`Oban.insert/2` has to be replaced by `OpentelemetryOban.insert/2`.
Before:
```elixir
%{id: 1, in_the: "business", of_doing: "business"}
|> MyApp.Business.new()
|> Oban.insert()
```
After:
```elixir
%{id: 1, in_the: "business", of_doing: "business"}
|> MyApp.Business.new()
|> OpentelemetryOban.insert()
```
Co-authored-by: Tristan Sloughter <t@crashfast.com>
