* PHPC-1880: Drop support for PHP 7.1
* Bump PHP versions in AppVeyor config
* PHPC-1880: Update Evergreen config for PHP 7.2+ and MongoDB 5.0
Bump edge-versions:latest-stable to MongoDB 5.0. Drops PHP 7.1 and adds PHP 8.0 to php-versions and newly created php-edge-versions axis.
Use oldest-supported or latest-stable PHP version for matrices other than test-php-versions.
Make variant display names consistent to help detect duplicates.
Remove WiredTiger from mongo-42-storage-engines since it's tested in most other variants by default.
* Revise "cursor not found" error message assertions for latest server version
* Temporarily remove 1.19.x from libmongoc-version axis