minor #53254 [Validator] Add Charset french translation (alexandre-daubois)

This PR was merged into the 5.4 branch.

Discussion
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[Validator] Add `Charset` french translation

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

Following #53253. Would require symfony/symfony#53253 (comment), which is in the pipe.

Requires #53256

Commits
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7d6da4d0fd [Validator] Add `Charset` french translation

Author: nicolas-grekas

Resources/translations/validators.fr.xlf

@@ -430,6 +430,10 @@
                 <source>The extension of the file is invalid ({{ extension }}). Allowed extensions are {{ extensions }}.</source>
                 <target>L'extension du fichier est invalide ({{ extension }}). Les extensions autorisées sont {{ extensions }}.</target>
             </trans-unit>
+            <trans-unit id="111">
+                <source>The detected character encoding is invalid ({{ detected }}). Allowed encodings are {{ encodings }}.</source>
+                <target>L'encodage de caractères détecté est invalide ({{ detected }}). Les encodages autorisés sont {{ encodings }}.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>