Update composer.lock

[EarthlingDavey]

For this PR, composer update was run. It updated the lock file and addresses:

• a recommended immediate update of WP https://wordpress.org/documentation/wordpress-version/version-6-5-5/
• and updates other outdated dependencies.

Update log:

  - Upgrading composer/installers (v2.2.0 => v2.3.0)
  - Upgrading koodimonni-language/core-en_gb (6.5.4 => 6.5.5)
  - Upgrading roave/security-advisories (dev-latest a36c08c => dev-latest 601ba51)
  - Upgrading roots/wordpress (6.5.4 => 6.5.5)
  - Upgrading roots/wordpress-no-content (6.5.4 => 6.5.5)
  - Upgrading symfony/polyfill-ctype (v1.29.0 => v1.30.0)
  - Upgrading symfony/polyfill-intl-grapheme (v1.29.0 => v1.30.0)
  - Upgrading symfony/polyfill-intl-normalizer (v1.29.0 => v1.30.0)
  - Upgrading symfony/polyfill-mbstring (v1.29.0 => v1.30.0)
  - Upgrading symfony/polyfill-php73 (v1.29.0 => v1.30.0)
  - Upgrading symfony/polyfill-php80 (v1.29.0 => v1.30.0)
  - Upgrading symfony/polyfill-php81 (v1.29.0 => v1.30.0)
  - Upgrading wp-cli/extension-command (v2.1.21 => v2.1.22)
  - Upgrading wpackagist-plugin/safe-redirect-manager (2.1.1 => 2.1.2)