test: update target flag tests for webpack 5.108

[alexander-akait]

Summary

CI on #4792 fails (and #4795 is blocked) because webpack 5.108 changed target behavior in two ways that broke test/build/target/flag-test/target-flag.test.js:

• webpack 5.108 introduces the universal, deno and bun targets, so the "Unknown target 'invalid'" stderr snapshots no longer match.
• Combining targets like node + web no longer fails with "no default script chunk format available" — webpack now builds them successfully with universal ESM output, so the "should throw an error for incompatible multiple targets" test gets exit code 0 instead of 2.

Changes

• Bump webpack to 5.108.3 in package-lock.json (already allowed by the ^5.107.2 range; snapshots are keyed per webpack major and must match the locked version).
• Regenerate the two "Unknown target" stderr snapshots to include the new universal, deno and bun target descriptions.
• Replace the "should throw an error for incompatible multiple targets" test with "should allow multiple different targets", asserting that node + web now builds successfully.

Testing

Full jest suite passes locally with webpack 5.108.3 (727 passed, 330/330 snapshots).

Once merged, Dependabot can rebase #4792 and #4795 and their CI should go green.

🤖 Generated with Claude Code

https://claude.ai/code/session_012iKSSr35Ue6UtyA6rcw6UA

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[changeset-bot]

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[linux-foundation-easycla]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.43%. Comparing base (3bfa81c) to head (65bb2ad).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4797   +/-   ##
=======================================
  Coverage   93.43%   93.43%           
=======================================
  Files          14       14           
  Lines        5420     5420           
  Branches      788      788           
=======================================
  Hits         5064     5064           
  Misses        354      354           
  Partials        2        2           

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[Copilot]

Pull request overview

Updates the --target flag test suite to match webpack 5.108’s updated target behavior and refreshes related snapshots/lockfile state so CI can pass against the newer webpack.

Changes:

• Adjust --target tests to treat node + web as a valid multi-target combination (exit code 0).
• Regenerate “Unknown target” stderr snapshots to include newly supported targets (universal, deno, bun).
• Update the lockfile to resolve to webpack 5.108.3 and reflect related transitive dependency changes.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

File	Description
test/build/target/flag-test/target-flag.test.js	Updates multi-target test expectations to reflect webpack 5.108 behavior.
test/build/target/flag-test/snapshots/target-flag.test.js.snap.webpack5	Refreshes snapshots for updated “Unknown target” output and removes now-obsolete error snapshot.
package-lock.json	Locks to webpack 5.108.3 and updates related dependency graph entries.

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