use bundled libbson and libmongc 1.30.7

use bundled libbson and libmongc 1.30.6

use bundled libbson and libmongc 1.30.5

add note in description about php-pecl-mongodb2

raise dependency on PHP 8.1
raise dependency on libbson and libmongc 1.30
raise dependency on libmongocrypt 1.12