fix(composer): allow single pipe for backward compatibility in PHP version selection

[dcmbrs]

• This change updates the Composer constraint parser to correctly handle version constraints using a single pipe (|) as a logical OR.
  The tool now treats | and || equivalently, aligning its behavior with Composer’s semver implementation and ensuring backward compatibility.
  Composer doc : https://getcomposer.org/doc/articles/versions.md
  Composer regex "OR" : https://github.com/composer/semver/blob/main/src/VersionParser.php#L278

• Several existing Composer projects define PHP version constraints using a single pipe operator (e.g. ^7.1 | ^8.0), which is valid and supported by Composer.
  Previously, such configurations were not correctly interpreted by the tool, leading to incorrect PHP version selection or failures.
  This change ensures that projects relying on this syntax are handled correctly without requiring configuration changes.

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: dcmbrs / name: mitri (3429ce1)