deps: Update deps and move to yarn

[thelukewalton]

No description provided.

[DE7924]

PR Checks Complete

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✅ Formatting

✅ Testing

[Copilot]

Pull request overview

This pull request migrates the project from npm to Yarn 4.12.0 as the package manager and updates several dependencies to their latest versions. The migration involves updating GitHub Actions workflows, adding Yarn configuration files, and regenerating the bundled distribution files.

Changes:

• Migrated package manager from npm to Yarn 4.12.0 with configuration via .yarnrc.yml
• Updated multiple dependencies including @playwright/test, @github/local-action, @types/node, @typescript-eslint/*, eslint, eslint-plugin-jest, and typedoc
• Updated GitHub Actions workflows to use yarn install --immutable and yarn bundle instead of npm commands
• Added CODEOWNERS file designating repository ownership
• Regenerated bundled distribution files in dist/ reflecting dependency updates

Reviewed changes

Copilot reviewed 6 out of 13 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
package.json	Removed redundant private field, updated dependency versions, added packageManager field for Yarn
.yarnrc.yml	Added Yarn 4 configuration specifying node-modules linker and Yarn version
.github/workflows/ci.yml	Updated to use Yarn commands and removed npm cache configuration
.github/workflows/check-dist.yml	Updated to use Yarn commands and removed npm cache configuration
.github/CODEOWNERS	Added new file designating repository code ownership
dist/*	Regenerated bundled distribution files reflecting updated dependencies
custom-elements.json	Updated manifest including additional build artifact entries

Comments suppressed due to low confidence (1)

custom-elements.json:374

• The custom-elements.json file now includes entries for coverage and docs JavaScript files (lines 327-374). These generated/build artifacts should typically be excluded from custom element analysis. Consider adding these directories to the exclusion patterns in the custom-elements-manifest analyzer configuration to prevent them from being analyzed in future builds.

    {
      "kind": "javascript-module",
      "path": "src/scripts/analyze.ts",
      "declarations": [
        {
          "kind": "function",
          "name": "eslint",
          "return": {
            "type": {
              "text": "Promise<StepResponse>"
            }
          },
          "parameters": [
            {
              "name": "command",
              "type": {
                "text": "Command"
              },
              "description": "The command to run ESLint."
            }
          ],
          "description": "Executes an ESLint command and processes the output to generate an HTML table of linting issues."
        },
        {
          "kind": "function",
          "name": "litAnalyzer",
          "return": {
            "type": {
              "text": "Promise<StepResponse>"
            }
          },
          "parameters": [
            {
              "name": "command",
              "type": {
                "text": "Command"
              },
              "description": "The command to be executed and analyzed."
            }
          ],
          "description": "Analyzes the output of a given command using the lit-analyzer tool."
        },
        {
          "kind": "function",
          "name": "typeDoc",
          "return": {
            "type": {
              "text": "Promise<StepResponse>"

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[Copilot]

The CODEOWNERS file entry is missing the '@' prefix. GitHub CODEOWNERS requires usernames to be prefixed with '@'. This should be * @thelukewalton instead of * thelukewalton.

[Copilot]

The removal of cache: npm from the setup-node action is correct since the project is now using Yarn. However, to maintain caching benefits, consider adding cache: yarn to improve CI performance by caching Yarn dependencies.

Suggested change

	node-version-file: .node-version
	node-version-file: .node-version
	cache: yarn