Fix: Bump Composer dependencies to fix security issues

[krishana7911]

Summary

Bumps guzzlehttp/psr7, symfony/yaml, and symfony/dom-crawler in tests/codeception/composer.lock to resolve the open Dependabot security alerts.

Changes

• guzzlehttp/psr7: 2.8.0 → 2.12.0
• symfony/yaml: 5.4.45 → 5.4.52
• symfony/dom-crawler: 5.4.48 → 5.4.52

Verification

Ran composer audit locally after the bump — all previously flagged advisories are resolved:

No security vulnerability advisories found.
Found 1 abandoned package:
codeception/phpunit-wrapper (no replacement suggested)

The codeception/phpunit-wrapper notice is unrelated to this fix — it's an abandoned-package notice, not a security advisory, and isn't part of the alerts this PR addresses.

Scope note

These are dev/test-only dependencies (tests/codeception/composer.lock), isolated from the plugin's runtime code — they're never loaded on a live site running rtMedia, only when the test suite is executed locally or in CI.

Resolves

Closes:

• https://github.com/rtCamp/rtMedia/security/dependabot/146
• https://github.com/rtCamp/rtMedia/security/dependabot/145
• https://github.com/rtCamp/rtMedia/security/dependabot/143
• https://github.com/rtCamp/rtMedia/security/dependabot/142
• https://github.com/rtCamp/rtMedia/security/dependabot/141
• https://github.com/rtCamp/rtMedia/security/dependabot/140