minor #28828 [Validator] Add a missing Polish translation (jakzal)

This PR was submitted for the master branch but it was merged into the 2.8 branch instead (closes #28828).

Discussion
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[Validator] Add a missing Polish translation

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | no <!-- don't forget to update src/**/CHANGELOG.md files -->
| BC breaks?    | no     <!-- see https://symfony.com/bc -->
| Deprecations? | no <!-- don't forget to update UPGRADE-*.md and src/**/CHANGELOG.md files -->
| Tests pass?   | yes    <!-- please add some, will be required by reviewers -->
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

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Commits
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c1314b3 [Validator] Add a missing Polish translation

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

@@ -322,6 +322,10 @@
                 <source>This is not a valid UUID.</source>
                 <target>To nie jest poprawne UUID.</target>
             </trans-unit>
+            <trans-unit id="84">
+                <source>This value should be a multiple of {{ compared_value }}.</source>
+                <target>Ta wartość powinna być wielokrotnością {{ compared_value }}.</target>
+            </trans-unit>
         </body>
     </file>
 </xliff>