2.13.3
(fix): Emit a standalone LICENSE file at the repo root when a custom license is
configured (license: { custom: ./LICENSE } in the generator’s github block).
Previously the PHP generator only set the license field in composer.json and
never wrote the license file itself, so GitHub license detection and compliance
scanners reported no license. This brings the PHP generator to parity with the
TypeScript, Python, Java, and Go generators.