Sync fork with upstream and update dependencies

- Update composer.lock to reflect new package versions and hashes.
- Change PHP requirement from `>=8.0` to `^8.1` in composer.json.
- Upgrade Docker base image to `phpdockerio/php:8.1-fpm`.
- Modify VisualCeption.php methods to enhance exception handling and improve code readability.

Author: DevquasarX9

composer.json

@@ -6,7 +6,7 @@
   "homepage": "https://github.com/Codeception/VisualCeption",
   "license": "MIT",
   "require": {
-    "php": ">=8.0",
+    "php": "^8.1",
     "ext-imagick": "*",
     "ext-mbstring": "*",
     "ext-zip": "*",