minor #53405 [Validator] Added missing Greek translations (thunderer)

This PR was merged into the 5.4 branch.

Discussion
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[Validator] Added missing Greek translations

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | Fix #53289
| License       | MIT

Added missing Greek translations with help from a professional translator.

Commits
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f13453a [Validator] added missing Greek translations

src/Symfony/Component/Validator/Resources/translations/validators.el.xlf

@@ -432,11 +432,11 @@
             </trans-unit>
             <trans-unit id="111">
                 <source>The detected character encoding is invalid ({{ detected }}). Allowed encodings are {{ encodings }}.</source>
-                <target state="needs-translation">The detected character encoding is invalid ({{ detected }}). Allowed encodings are {{ encodings }}.</target>
+                <target>Η κωδικοποίηση χαρακτήρων που ανιχνεύτηκε δεν είναι έγκυρη ({{ detected }}). Οι επιτρεπόμενες κωδικοποιήσεις είναι {{ encodings }}.</target>
             </trans-unit>
             <trans-unit id="112">
                 <source>This is not a valid MAC address.</source>
-                <target state="needs-translation">This is not a valid MAC address.</target>
+                <target>Αυτή δεν είναι έγκυρη διεύθυνση MAC.</target>
             </trans-unit>
         </body>
     </file>