otelgrpc: only start span if not filtered out

[vianamjr]

Related to #6446

Only start a span if it's not filtered out.

[dmathieu]

Have you looked into adding a test?

[vianamjr]

@dmathieu I will look into soon, Just need to test is a bit more in a specific env and will come with tests.

[vianamjr]

Kind of trick to add tests, but I could do it. (I hope)

[vianamjr]

Not sure If there is something missing regarding the review, let me know.

[dmathieu]

Could you look into the test suite failures?

[vianamjr]

Could you look into the test suite failures?

Sure, my mistake, fixed, I hope now it's ok

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.1%. Comparing base (6eaddb9) to head (7f41c5d).
Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #6695   +/-   ##
=====================================
  Coverage   73.1%   73.1%           
=====================================
  Files        191     191           
  Lines      15858   15866    +8     
=====================================
+ Hits       11598   11606    +8     
  Misses      3925    3925           
  Partials     335     335           

Files with missing lines	Coverage Δ
...n/google.golang.org/grpc/otelgrpc/stats_handler.go	100.0% <100.0%> (ø)

[MrAlias]

@dashpole does this look good to you?

[dashpole]

yep