composer: update vitexsoftware/ease-core requirement (#28)

Updates the requirements on [vitexsoftware/ease-core](https://github.com/VitexSoftware/php-ease-core) to permit the latest version.
- [Release notes](https://github.com/VitexSoftware/php-ease-core/releases)
- [Changelog](https://github.com/VitexSoftware/php-ease-core/blob/main/CHANGELOG.md)
- [Commits](VitexSoftware/php-ease-core@1.49.0...v1.50.0)

---
updated-dependencies:
- dependency-name: vitexsoftware/ease-core
  dependency-version: 1.50.0
  dependency-type: direct:production
...

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Author: dependabot[bot]

composer.json

@@ -10,7 +10,7 @@
     ],
     "require": {
         "ext-soap": "*",
-        "vitexsoftware/ease-core": ">=1.49.0"
+        "vitexsoftware/ease-core": ">=1.50.0"
     },
     "autoload": {
         "psr-4": {