update live query client

[avalanche123]

Description of your changes

In order to minimize patches, I've added ability to disable apollo tracing extension,
which drammatically shrinks patch responses. Additionally, the previous implementation
suffered from inconsistent throttling because between producing graphql response
marshaller and it actually marshalling into output, there could be a non-trivial
delay due to all fields getting resolved during marshalling. Finally, the original
implementation would swallow context errors, since there is no way to add errors to
streaming responses channel.

With this implementation, we don't generate liveQuery resolver, relying on a gqlgen
operation interceptor extension. When an operation is detected to be a liveQuery
subscription field, it is replaced with a query equivalent and the handler re-runs
the query in a loop with throttle backoff.

• allow disabling apollo tracing extension
• consistently sort events in responses
• rework live queries implementation

I have:

• Read and followed Upbound's contribution process.
• Run make reviewable to ensure this PR is ready for review.
• Added backport release-x.y labels to auto-backport this PR, as appropriate.

How has this code been tested

Tested locally.

[AlainRoy]

which dramatically shrinks patch responses

I'm curious -- can you add some rough estimates on how much it's reduced?

[avalanche123]

@AlainRoy sure, there you go:
old:

new: