bug #17437 [Validator] File: fix versionadded of extensionsMessage option (alamirault)

This PR was merged into the 6.2 branch.

Discussion
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[Validator] File: fix versionadded of extensionsMessage option

Small mistake: must be 6.2 instead of 6.3

Commits
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1d281f9 [Validator] File: fix versionadded of extensionsMessage option

Author: OskarStark

reference/constraints/File.rst

@@ -275,7 +275,7 @@ You can find a list of existing mime types on the `IANA website`_.
 
 .. versionadded:: 6.2
 
-    The ``extensionsMessage`` option was introduced in Symfony 6.3.
+    The ``extensionsMessage`` option was introduced in Symfony 6.2.
 
 The message displayed if the extension of the file is not a valid extension
 per the `extensions`_ option.