Bump api-clients/pusher from 1.0.0 to 1.1.2

Bumps [api-clients/pusher](https://github.com/php-api-clients/pusher) from 1.0.0 to 1.1.2.
- [Release notes](https://github.com/php-api-clients/pusher/releases)
- [Commits](php-api-clients/pusher@1.0.0...1.1.2)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Author: dependabot-support