fix(deps): update dependency symfony/yaml to v8

Author: renovate-fastnorth[bot]

composer.json

@@ -18,7 +18,7 @@
     "require": {
         "php": ">=7.1.3",
         "predicthq/address-formatter-templates": "~1.0",
-        "symfony/yaml": "~4.0|~5.0|~6.0|~7.0",
+        "symfony/yaml": "8.0.8",
         "mustache/mustache": "~2.0"
     },
     "require-dev": {