symfony

This PR was merged into the 6.2 branch.

Discussion
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[SecurityBundle] Add XML support for new request attribute matcher

| Q             | A
| ------------- | ---
| Branch?       | 6.2
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

This adds support for the XML format to the new attribute request matching options (ref #45907).

Commits
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aa642048 [SecurityBundle] Add XML support for new request attribute matcher