Update dependency oomphinc/composer-installers-extender to v2

This MR contains the following updates:

Package	Type	Update	Change
oomphinc/composer-installers-extender (source)	require	major	1.1.2 -> 2.0.0

---

Release Notes

oomphinc/composer-installers-extender

v2.0.0

Compare Source

Added

• Add .editorconfig, .gitignore, .lando.yml, phpcs.xml and phpunit.xml files to support local development
• Add LICENSE and CHANGELOG.md files
• Add phpunit/phpunit and squizlabs/php_codesniffer as development dependencies
• Add requirement for PHP 7.1
• Add support for Composer 2

Changed

• Move OomphInc\ComposerInstallersExtender\Installer to OomphInc\ComposerInstallersExtender\Installers\Installer
• Move OomphInc\ComposerInstallersExtender\InstallerHelper to OomphInc\ComposerInstallersExtender\Installers\CustomInstaller
• Implement PSR-2 standards and PHP 7.1 syntax
• Update project README.md file

---

Configuration

Schedule: At any time (no schedule defined).

Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

Ignore: Close this MR and you won't be reminded about this update again.

---

• If you want to rebase/retry this MR, check this box.

---

This MR has been generated by Renovate Bot.