Bump psr/log from 1.1.2 to 1.1.3

Bumps [psr/log](https://github.com/php-fig/log) from 1.1.2 to 1.1.3.
- [Release notes](https://github.com/php-fig/log/releases)
- [Commits](https://github.com/php-fig/log/compare/1.1.2...1.1.3

)

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