[Feature/CI-CD]: Add core API tests

[LorenzoTettamanti]

Is your feature request related to a problem?

• Yes

  Problem Description:

  The entire projects needs tests to ensure stability and compatibility accross different kernels

  Solution:

  Add tests in core crates covering:

  • Core tests (load buffer_types, load bpf programs,OTEL tests)
  • Identity service tests (networking,blocklist)
  • Metrics service tests (memory metrics tests,cpu_tests,network metrics tests)
  • Agent/CLI tests
  • Stability tests: ensures that the programs are compatible accross different kernels

  ---