chore(release): bump package.json to v0.21.43

[mascot-five]

Bumps package.json and package-lock.json to v0.21.43 to match the version just published to npm.

This PR is normally auto-generated by the Publish Node.js Package workflow. On the v0.21.43 publish
(run 30108402937) the publish itself
succeeded, but peter-evans/create-pull-request failed to push the branch:

remote: Internal Server Error
 ! [remote rejected]   release/version-bump/v0.21.43 -> release/version-bump/v0.21.43 (Internal Server Error)

That was a transient GitHub-side fault during a broader incident window - the same minute,
notify-dependents.yml's bump-layer5 job hit an identical Internal Server Error on push and other
jobs saw 429 Too Many Requests fetching actions. Because the failing step is inside the same job as
npm publish --provenance, the job cannot be re-run without attempting to republish an already-published
version, so this PR reproduces the automation's commit by hand: same two files, same content, same
[skip ci] commit message.

The commit message includes [skip ci] so merging this PR does not re-trigger workflows against the bump
commit - the content was already CI-gated by the PR that merged into the tag.

Summary by CodeRabbit

• Chores
  • Updated the application version to 0.21.43.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 75067c66-3f79-4fb4-a90c-12b31a45c075

📥 Commits

Reviewing files that changed from the base of the PR and between d619d22 and 553a85a.

⛔ Files ignored due to path filters (1)

• package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (1)

• package.json

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📝 Walkthrough

Walkthrough

The package version in package.json is bumped from 0.21.42 to 0.21.43.

Changes

Package release

Layer / File(s)	Summary
Update package version package.json	Bumps the package patch version from 0.21.42 to 0.21.43.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• layer5io/sistent#1733: Updates the same package.json version field.
• layer5io/sistent#1738: Contains a consecutive patch version bump in package.json.
• layer5io/sistent#1740: Updates only the package patch version.

Suggested labels: chore, release

Suggested reviewers: leecalcote, yi-nuo426, rishiraj38

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the release version bump in package.json to v0.21.43.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch release/version-bump/v0.21.43

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