S3UTILS-248: move to Node 24

[francoisferrand]

Node 22 enters maintenance in October and 24 is the active LTS until 2028, so CI, the image and the engines floor all move to 24.

Part of the org-wide Node 24 epic, OS-1155.

Two native dependencies didn't survive the ABI/toolchain change:

• bucketclient 8.2.6 carried its own nested Arsenal 8.2.4, which pulled in diskusage — unmaintained since 2021 and still using the NAN API that Node 24 removed, so there was no version to bump to. 8.2.10 takes Arsenal as a peer dependency instead, so we end up with a single copy (ours) and diskusage disappears from the tree.
• node-rdkafka 2.x builds with C++17 while the Node 24 headers need C++20. Fixed in 3.x; the Producer API we use is unchanged.

No source changes were needed beyond that.

Validation

Run locally on Node 24.21.0:

• yarn install clean
• yarn lint -- --max-warnings 0 clean
• yarn test:unit — 32 suites, 456 tests passed
• the MongoDB-backed functional suites (countItems, stalled, collectBucketMetricsAndUpdateBucketCapacityInfo) — 3 suites, 11 tests passed
• docker build succeeds, and node-rdkafka / arsenal / bucketclient / level all load inside the image

The functional suites needing the workbench stack (CloudServer/Vault) couldn't run locally — CI covers those.

Issue: S3UTILS-248

[bert-e]

Hello francoisferrand,

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[bert-e]

Incorrect fix version

The Fix Version/s in issue S3UTILS-248 contains:

• None

Considering where you are trying to merge, I ignored possible hotfix versions and I expected to find:

• 1.18.2

• 1.20.0

Please check the Fix Version/s of S3UTILS-248, or the target
branch of this pull request.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 45.32%. Comparing base (fcf6169) to head (8183f98).
⚠️ Report is 6 commits behind head on development/1.18.

Additional details and impacted files

@@                Coverage Diff                @@
##           development/1.18     #409   +/-   ##
=================================================
  Coverage             45.32%   45.32%           
=================================================
  Files                    88       88           
  Lines                  6489     6489           
  Branches               1363     1363           
=================================================
  Hits                   2941     2941           
  Misses                 3502     3502           
  Partials                 46       46           

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