Bump tightenco/collect from 5.8.35 to 6.4.0

Bumps [tightenco/collect](https://github.com/tightenco/collect) from 5.8.35 to 6.4.0.
- [Release notes](https://github.com/tightenco/collect/releases)
- [Commits](https://github.com/tightenco/collect/compare/v5.8.35...v6.4.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

composer.json

@@ -13,7 +13,7 @@
         "symfony/framework-bundle": "4.2.*",
         "symfony/orm-pack": "^1.0",
         "symfony/yaml": "4.2.*",
-        "tightenco/collect": "^5.7"
+        "tightenco/collect": "^6.4"
     },
     "config": {
         "preferred-install": {