feat(deps): add EOL dependency inventory script

[JessicaJHee]

Description

Adds a generator and snapshot inventory of direct npm dependencies for RHIDP-13174 (inventory only — not remediation RHIDP-13175 or CI RHIDP-13176).
yarn eol-inventory scans RHDH core (package.json, packages/*, plugins/*) plus generally-available and tech-preview overlay plugins from rhdh-plugin-export-overlays main, then looks up npm deprecated / last-publish. It writes:

• scripts/eol-inventory/eol-dependency-inventory-report.md: Generated report
  • one report for RHDH core, + one table per overlay workspace (non-OK rows, sorted by impact)
• scripts/eol-inventory/eol-dependency-inventory.csv: table of all dependencies, one row per dep

See more on how this works in the README

Which issue(s) does this PR fix

• Fixes RHIDP-16447

PR acceptance criteria

Please make sure that the following steps are complete:

• GitHub Actions are completed and successful
• Unit Tests are updated and passing
• E2E Tests are updated and passing
• Documentation is updated if necessary (requirement for new features)
• Add a screenshot if the change is UX/UI related

How to test changes / Special notes to the reviewer

Run from the repo root (setting GITHUB_TOKEN / GH_TOKEN avoids GitHub rate limits): yarn eol-inventory

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.69%. Comparing base (d814f4b) to head (3b97720).
⚠️ Report is 7 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5301      +/-   ##
==========================================
- Coverage   63.68%   59.69%   -3.99%     
==========================================
  Files         121      109      -12     
  Lines        2288     2062     -226     
  Branches      527      501      -26     
==========================================
- Hits         1457     1231     -226     
  Misses        829      829              
  Partials        2        2              

Flag	Coverage Δ
rhdh	59.69% <ø> (-3.99%)	⬇️

Components	Coverage Δ
Backend plugins	∅ <ø> (∅)
Backend app	69.69% <ø> (ø)
Frontend app	58.82% <ø> (ø)
Plugin utils	∅ <ø> (∅)

---

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[github-actions]

The container image build workflow finished with status: cancelled.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Image was built and published successfully. It is available at:

• quay.io/rhdh-community/rhdh:pr-5301
• quay.io/rhdh-community/rhdh:pr-5301-3b97720e

[kim-tsao]

@JessicaJHee is the script going to run on schedule or will it rely on updates via fixes as described in the README?

[openshift-ci]

@JessicaJHee: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-ocp-helm	3b97720	link	unknown	/test e2e-ocp-helm

Full PR test history. Your PR dashboard.

Details

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