chore: script to check if OBI PR released

[skl]

I was finding it difficult to determine if/when OBI PRs are released in Beyla, so I generated this script which uses gh (GitHub CLI). Maybe others would find it useful?

Example below to find if the OBI PR linked to this issue open-telemetry/opentelemetry-ebpf-instrumentation#995 was released in Beyla (it wasn't):

./scripts/release-lookup.sh --obi 995
[info] Issue #995: Use HTTP Host header for service name resolution when K8s lookup fails (state: closed)
[info] Found linked PR #997: fix: fallback to http host header for service graph

OBI Issue #995 (PR #997) was not yet released as part of Beyla

Another example with open-telemetry/opentelemetry-ebpf-instrumentation#896:

❯ ./scripts/release-lookup.sh --obi 896

OBI PR #896 was released as part of Beyla 2.8.0

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 43.42%. Comparing base (f1773a4) to head (1f113c1).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2421   +/-   ##
=======================================
  Coverage   43.42%   43.42%           
=======================================
  Files          40       40           
  Lines        3155     3155           
=======================================
  Hits         1370     1370           
  Misses       1660     1660           
  Partials      125      125           

Flag	Coverage Δ
unittests	43.42% <ø> (ø)

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[marctc]

Maybe we can explain in the release docs that exists this? Could be useful for patches

[skl]

@marctc done in 1f113c1

[marctc]

Awesome, thanks!