feature #43671 add ResponseIsUnprocessable (garak)
feature #43671 add ResponseIsUnprocessable (garak)

This PR was squashed before being merged into the 5.4 branch.

Discussion
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add ResponseIsUnprocessable

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | no
| New feature?  | yes
| Deprecations? | no
| Tickets       | Fix #40894
| License       | MIT
| Doc PR        | none

Commits
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61df7f1752 add ResponseIsUnprocessable

symfony/framework-bundle