NETOBSERV-1906 add nodeSelector

[jpinsonneau]

Description

Add option to set a single node selector to eBPF agents.

$ ./build/oc-netobserv flows --node-selector=kubernetes.io/hostname:netobserv-cli-cluster-worker

Dependencies

n/a

Checklist

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• Is this PR backed with a JIRA ticket? If so, make sure it is written as a title prefix (in general, PRs affecting the NetObserv/Network Observability product should be backed with a JIRA ticket - especially if they bring user facing changes).
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• QE requirements (check 1 from the list):
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  • Regression tests only (e.g. refactoring with no user-facing change).
  • No QE (e.g. trivial change with high reviewer's confidence, or per agreement with the QE team).

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 25.08%. Comparing base (6ff0e29) to head (23238ce).
Report is 7 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #101   +/-   ##
=======================================
  Coverage   25.08%   25.08%           
=======================================
  Files           8        8           
  Lines        1148     1148           
=======================================
  Hits          288      288           
  Misses        839      839           
  Partials       21       21           

Flag	Coverage Δ
unittests	25.08% <ø> (ø)

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[openshift-ci]

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