feat(tests): add checks for terway daemonset name and version requirements in tests

[l1b0k]

Note

Add daemonset/name and version checks to e2e tests (incl. k8s version for HostPort) and introduce Makefile targets to run e2e suites.

• E2E Tests:
  • Add gating for terway daemonset name (terway-eniip) and minimum versions.
    • Utilities in tests/utils_test.go: GetTerwayDaemonSetName, GetTerwayVersion, GetK8sVersion, CheckTerwayDaemonSetName, CheckTerwayVersion.
  • Apply checks in:
    • tests/config_test.go (IPPool): require terway-eniip, terway >= v1.16.1.
    • tests/idle_ip_reclaim_test.go: require terway-eniip, terway >= v1.16.1; cleanup fixes.
    • tests/connective_test.go:
      • NetworkPolicy: require terway-eniip.
      • HostPort: require terway-eniip, terway >= v1.15.0, k8s >= v1.34.0; minor err var fix.
    • tests/multi_network_test.go: require terway-eniip, terway >= v1.16.1.
  • tests/main_test.go: minor cleanup of unused flags/vars.
• Makefile:
  • New targets: e2e-test, e2e-upgrade-test, e2e-test-all to run e2e suites.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.74%. Comparing base (1144b3e) to head (7f5b9c7).
⚠️ Report is 2 commits behind head on main.

❌ Your project status has failed because you have indirect coverage changes. Learn more about Unexpected Coverage Changes and reasons for indirect coverage changes.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #940      +/-   ##
==========================================
- Coverage   61.77%   61.74%   -0.03%     
==========================================
  Files         131      131              
  Lines       16104    16104              
==========================================
- Hits         9948     9944       -4     
- Misses       4984     4988       +4     
  Partials     1172     1172              

Flag	Coverage Δ
unittests	61.74% <ø> (-0.03%)	⬇️

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