minor symfony#54778 [Filesystem] move Process component dep to require-dev (xabbuh)

This PR was merged into the 5.4 branch.

Discussion
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[Filesystem] move Process component dep to require-dev

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Issues        | Fix symfony#54777
| License       | MIT

Commits
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03c6131 move Process component dep to require-dev

Author: nicolas-grekas

src/Symfony/Component/Filesystem/composer.json

@@ -19,7 +19,9 @@
         "php": ">=7.2.5",
         "symfony/polyfill-ctype": "~1.8",
         "symfony/polyfill-mbstring": "~1.8",
-        "symfony/polyfill-php80": "^1.16",
+        "symfony/polyfill-php80": "^1.16"
+    },
+    "require-dev": {
         "symfony/process": "^5.4|^6.4"
     },
     "autoload": {