PHP-SDK - v4.0.1

What's Changed

• [FSSDK-9022] Dev Containers and bug bash by @Mat001 in https://github.com/optimizely/php-sdk/pull/269
• [FSSDK-9553] Add GitHub Issues templates by @mikechu-optimizely in https://github.com/optimizely/php-sdk/pull/278
• [FSSDK-9573] Fix: Deprecation warning by @mikechu-optimizely in https://github.com/optimizely/php-sdk/pull/279
• [FSSDK-9784] Return Latest Experiment When Duplicate Keys in Config by @mikechu-optimizely in https://github.com/optimizely/php-sdk/pull/280
• [FSSDK-9630] Fix: Code examples by @localheinz in https://github.com/optimizely/php-sdk/pull/281

Full Changelog: https://github.com/optimizely/php-sdk/compare/4.0.0...4.0.1