chore(deps): replace deprecated har-validator

[alexandroit]

Summary

HTTPSnippet currently validates each input through
require('har-validator/lib/async'), while the upstream npm package is
deprecated as unsupported.

This changes only the dependency resolution:

"har-validator": "npm:@stackline/har-validator@1.0.0"

The legacy package name and existing source import remain unchanged. The exact
version pin also keeps the migration deterministic.

Because HTTPSnippet prepares requests immediately after the validator
callback, I separately verified that the replacement preserves synchronous,
exactly-once callback behavior across every request fixture and a 1,000-call
stress run.

Verification

• npm ci
• npm test: 1,667 passing; existing skipped tests unchanged
• npm run pretest: Standard and Echint pass
• npm pack --dry-run
• Deep callback smoke: 18 validator exports, 19 request fixtures, multi-entry
  conversion, Promise validation, and invalid HARError behavior
• npm audit --omit=dev: zero vulnerabilities

Disclosure

I maintain @stackline/har-validator, the replacement proposed here. It is an
independent MIT-licensed compatibility continuation and is not affiliated with
or endorsed by the original har-validator maintainers.

Package: https://www.npmjs.com/package/@stackline/har-validator
Source: https://github.com/alexandroit/stackline-har-validator

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@​stackline/​har-validator@​1.0.0

View full report

[pimterry]

I'd rather not, sorry. Apart from the deprecation warning har-validator works fine, and shifting from a heavily used mature package to a brand new one creates more risk & hassle than upside.