Allow installation of the OpenTelemetry bullmq plugin

[alexmuller]

Suggestion from @kavanagh!

We use the bull package in next-home-page on top of Redis.

What problem does this feature solve?

Gives us telemetry data for queue/cache data in next-home-page

Ideal solution

Could we (optionally?) allow installation of the bullmq plugin? Does it give us something useful?

Alternatives

?

[kavanagh]

I like the idea of an app loading in its own additional plugins to instrument packages used only in that app. It would also encourage us to write instrumentation plugins (extending InstrumentationBase from @opentelemetry/instrumentation) for our own reusable pieces of code - going with the grain of OpenTelemetry, rather than sprinkling custom metrics within code.

[apaleslimghost]

another use case: in cp-content-pipeline we'd like to be able to use @opentelemetry/instrumentation-graphql

[rowanmanning]

note: Kara messaged me to say that the graphQL instrumentation is already included in auto-instrumentations-node