The ibexa:setup tool should use the X.Y.0 directory when installing for X.Y.0 series, X.Y is used instead.

Steps to reproduce:
1. Install Ibexa OSS 3.0.0*
2. In vendor/ibexa/post-install/resources/platformsh/ibexa-oss/ create a 3.3.0 directory
3. In vendor/ibexa/post-install/resources/platformsh/ibexa-oss/3.3.0/ create an empty file
3. Run composer ibexa:setup --platformsh

Expected:
The empty file is copied to the root directory of the project

Actual:
The file is not copied. Files from 3.3 directory are copied instead.

*If you can't install 3.0.0 you can modify the vendor/composer/InstalledVersions.php file to fool Composer, for example:

            'ibexa/oss' => [
                'pretty_version' => '3.3.0',
                'version' => '3.3.0',
                'aliases' => [
                ],
                'reference' => '86757ca30bd91055cb4b6bdb905bd74c934f77df',
            ],