Merge pull request #9 from php-etl/fix/lock-contracts-versions

add spec extension with a metadata package fixed

Author: JoMessina

composer.json

@@ -18,7 +18,7 @@
         "php": "^8.2",
         "nikic/php-parser": "^4.10",
         "symfony/config": "^6.0",
-        "php-etl/packaging-contracts": "0.3.0",
+        "php-etl/packaging-contracts": "0.3.*",
         "psr/log": "^3.0",
         "symfony/expression-language": "^6.0"
     },