Merge v1.21 into v1.x (#1620)

Author: mongodb-php-bot

composer.json

@@ -15,9 +15,7 @@
         "ext-json": "*",
         "ext-mongodb": "^1.21.0",
         "composer-runtime-api": "^2.0",
-        "psr/log": "^1.1.4|^2|^3",
-        "symfony/polyfill-php80": "^1.27",
-        "symfony/polyfill-php81": "^1.27"
+        "psr/log": "^1.1.4|^2|^3"
     },
     "require-dev": {
         "doctrine/coding-standard": "^12.0",