PHPC-2654: Update to libmongoc 2.2.1#1900

alcaeus merged 3 commits intomongodb:v2.xmongodb/mongo-php-driver:v2.xfrom

alcaeus:phpc-2654-libmongoc-2.2.1alcaeus/mongo-php-driver:phpc-2654-libmongoc-2.2.1Copy head branch name to clipboard