laminas/laminas-captcha 2.4.2

Based on https://github.com/zendframework/zend-captcha/releases/tag/release-2.4.2 (commit 404161fbea730eb5d4d20f4d7f798bf1065960e8 in this repo)

- [7503: Mail header - boundary issue (related to ZF2015-04)](https://github.com/zendframework/zf2/issues/7503)
- [7506: [mail\ Fix set UTF-8 values to headers. Fix zendframework/zend-captcha#7501](https://github.com/zendframework/zf2/pull/7506)
- [7507: [http\ Allow serialize any character on cookies](https://github.com/zendframework/zf2/pull/7507)
- [7510: [mail/mime\ Fix content-type has invalid characters in field value. Fix zendframework/zend-captcha#7503](https://github.com/zendframework/zf2/pull/7510)
- [7512: \Laminas\Ldap\Attribute::valueFromLdap catching wrong exception](https://github.com/zendframework/zf2/issues/7512)
- [7513: [ldap\ Fix exceptions while parsing are not captured.](https://github.com/zendframework/zf2/pull/7513)
- [7514: [zendframework/zend-captcha#7503\ Pass the `\r\n` sequence to Part::getHeadersAsArray()](https://github.com/zendframework/zf2/pull/7514)