deps: Update dependencies and workflows

[justlevine]

1. Fixes paths in GH Workflows
2. Updates wp-env to 11, and relevant config files to new pattern.
3. Updates other deps to their latests.
4. Backfills PR templates

[Copilot]

Pull request overview

This PR updates the project’s tooling stack (npm/composer deps), modernizes wp-env configuration/usage, and fixes/extends GitHub workflows and repo templates to match the new layout.

Changes:

• Update @wordpress/env (wp-env) and various JS/PHP dependencies; adjust npm scripts accordingly.
• Refactor wp-env config files and CI workflow commands to use the new config pattern.
• Add/restore GitHub PR/issue templates and fix workflow path references.

Reviewed changes

Copilot reviewed 14 out of 17 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
playwright.config.ts	Move Playwright/WP artifacts and output into tests/_output/e2e.
phpstan.neon.dist	Fix YAML indentation for bootstrap/paths configuration.
package.json	Update wp-env-related scripts and bump JS tooling dependencies.
package-lock.json	Lockfile updates for bumped npm dependencies.
composer.lock	Bump wp-phpunit/wp-phpunit version.
.wp-env.test.json	Add separate wp-env test config file.
.wp-env.json	Update wp-env config to the new simplified pattern.
.stylelint.config.js	Expand ignored file globs (JSX/TS/TSX).
.github/workflows/reusable-phpunit.yml	Update composer-install action and switch to wp-env:test usage.
.github/workflows/reusable-e2e.yml	Update composer-install action and start e2e env via wp-env:test.
.github/workflows/pr-title.yml	Adjust workflow permissions.
.github/workflows/copilot-setup-steps.yml	Fix workflow path quoting for pull_request trigger.
.github/workflows/ci.yml	Fix referenced reusable workflow paths.
.github/PULL_REQUEST_TEMPLATE.md	Add PR template.
.github/ISSUE_TEMPLATE/feature_request.yml	Add feature request issue template.
.github/ISSUE_TEMPLATE/config.yml	Add issue template config/contact links.
.github/ISSUE_TEMPLATE/bug-report.yml	Add bug report issue template.

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