Add span name formatters to gocql instrumentation

[brennantaylor]

Currently the observers hardcode the span names without allowing customization.

In particular the queries are just the statements executed and I have found these to contain whitespace like tabs and multi line statements with indentation.

By allowing span name formatters similar to otelhttp the user can customize the span names to their heart's desire.

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: brennantaylor / name: Brennan Taylor (1d1dc96)

[codecov]

Codecov Report

Merging #3047 (c6fe3e1) into main (e31186a) will increase coverage by 4.8%.
The diff coverage is 72.0%.

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #3047     +/-   ##
=======================================
+ Coverage   69.6%   74.4%   +4.8%     
=======================================
  Files        147       7    -140     
  Lines       6910     341   -6569     
=======================================
- Hits        4812     254   -4558     
+ Misses      1978      74   -1904     
+ Partials     120      13    -107     

Impacted Files	Coverage Δ
...ntation/github.com/gocql/gocql/otelgocql/config.go	60.5% <50.0%> (+60.5%)	⬆️
...entation/github.com/gocql/gocql/otelgocql/gocql.go	100.0% <100.0%> (+100.0%)	⬆️
...ation/github.com/gocql/gocql/otelgocql/observer.go	75.1% <100.0%> (+75.1%)	⬆️
...ntation/google.golang.org/grpc/otelgrpc/version.go
....mongodb.org/mongo-driver/mongo/otelmongo/mongo.go
...n/github.com/Shopify/sarama/otelsarama/consumer.go
samplers/aws/xray/version.go
...on/google.golang.org/grpc/otelgrpc/test/version.go
...hub.com/emicklei/go-restful/otelrestful/restful.go
detectors/gcp/cloud-run.go
... and 142 more

[MadVikingGod]

I would be a bit more defensive about these not being nil. If a user does With*SpanNameFormatter(nil) this will panic.

I would suggest adding a nil check either after apply's or before used in creating the Observers.

[pellared]

Closing as otelgoclq is deprected per #4164.