Bump phpstan/phpstan from 0.10.5 to 0.10.6 (#866)
Bump phpstan/phpstan from 0.10.5 to 0.10.6 (#866)

Bumps [phpstan/phpstan](https://github.com/phpstan/phpstan) from 0.10.5 to 0.10.6.
<details>
<summary>Release notes</summary>

*Sourced from [phpstan/phpstan's releases](https://github.com/phpstan/phpstan/releases).*

> ## 0.10.6
> * **Full support for PHP 7.3**:
>   * Support for `is_countable()` (7888e6edf63065220e656055ff1f7a3c54e853a1) - https://wiki.php.net/rfc/is-countable
>   * Support for `JSON_THROW_ON_ERROR` (d98c7ca1cb6255f4ea05982d18b8b4c03f989abf) - https://wiki.php.net/rfc/json_throw_on_error
>   * Support for `array_key_first()`/`array_key_last()` (f0252a5ab6b4a293fb25f218d9c64386f272280f) - https://wiki.php.net/rfc/array_key_first_last
> * Prevent using symfony/console with broken exit code handling ([#1548](https://github-redirect.dependabot.com/phpstan/phpstan/issues/1548)), thanks [**duncan3dc**](https://github.com/duncan3dc)!
</details>
<details>
<summary>Commits</summary>

- [`f0252a5`](https://github.com/phpstan/phpstan/commit/f0252a5ab6b4a293fb25f218d9c64386f272280f) Support for array_key_first/array_key_last
- [`d98c7ca`](https://github.com/phpstan/phpstan/commit/d98c7ca1cb6255f4ea05982d18b8b4c03f989abf) Support for JSON_THROW_ON_ERROR
- [`7888e6e`](https://github.com/phpstan/phpstan/commit/7888e6edf63065220e656055ff1f7a3c54e853a1) Support for is_countable()
- [`81fc897`](https://github.com/phpstan/phpstan/commit/81fc897adb7a6efa5c68f9e730ecf4168dd0bf6f) PHAR failure is no longer allowed
- [`daf7688`](https://github.com/phpstan/phpstan/commit/daf768836c9a8f33b40890ce34c015264796b6de) Separate job for PHAR pushing
- [`72b301f`](https://github.com/phpstan/phpstan/commit/72b301fb4ccaa228f36367507f3db9c99bf0fad9) Fixed build
- [`4635ee1`](https://github.com/phpstan/phpstan/commit/4635ee105d34c2c306317df95bc42e4650d4e1f3) Update README.md
- [`e7574d6`](https://github.com/phpstan/phpstan/commit/e7574d6b7aff5bb60d365ff84fd2741a12ab5d84) Fixed commiting PHAR to shim repo
- [`99bb3a9`](https://github.com/phpstan/phpstan/commit/99bb3a9d9f31f5aa8cdde3d37be052f15cead78a) Travis - build PHP 7.3
- [`d6c9a4e`](https://github.com/phpstan/phpstan/commit/d6c9a4e5db3d6996c5ff5f6b62c4175ee272fc9e) Travis CI - commit PHAR to phpstan-shim
- Additional commits viewable in [compare view](https://github.com/phpstan/phpstan/compare/0.10.5...0.10.6)
</details>
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[![Dependabot compatibility score](https://api.dependabot.com/badges/compatibility_score?dependency-name=phpstan/phpstan&package-manager=composer&previous-version=0.10.5&new-version=0.10.6)](https://dependabot.com/compatibility-score.html?dependency-name=phpstan/phpstan&package-manager=composer&previous-version=0.10.5&new-version=0.10.6)

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