minor symfony#20220 [OptionsResolver] [Options Resolver] Fix file reference method (devojifr)

This PR was merged into the 5.4 branch.

Discussion
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[OptionsResolver] [Options Resolver] Fix file reference method

The documentation mentions offsetGet from OptionsResolver.php file but the current link targets Options.php

Commits
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24b9c0c [Options Resolver] Fix file reference method

Author: javiereguiluz

components/options_resolver.rst

@@ -822,7 +822,7 @@ method::
 
     When using an option deprecated by you in your own library, you can pass
     ``false`` as the second argument of the
-    :method:`Symfony\\Component\\OptionsResolver\\Options::offsetGet` method
+    :method:`Symfony\\Component\\OptionsResolver\\OptionsResolver::offsetGet` method
     to not trigger the deprecation warning.
 
 .. note::