Update composer.json for symfony/process to support version ^6.4 or ^7.1

Update `composer.json` to support `symfony/process` version ^6.4 or ^7.1

* Update the `symfony/process` version in the `require` section to `^6.4|^7.1`


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For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/farzai/viola-php/pull/18?shareId=caab059c-3832-4b3d-a0b9-67a5f7867ac8).

composer.json

@@ -27,7 +27,7 @@
         "doctrine/dbal": "^3.6",
         "farzai/transport": "^1.2.0",
         "symfony/console": "^5.4.21|^6.2.10",
-        "symfony/process": "^7.1"
+        "symfony/process": "^6.4|^7.1"
     },
     "require-dev": {
         "laravel/pint": "^1.2",