feature symfony#57577 [FrameworkBundle][HttpKernel] Let RequestPayloadValueResolver consider mapped argument type (unixslayer)

This PR was merged into the 7.2 branch.

Discussion
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[FrameworkBundle][HttpKernel] Let `RequestPayloadValueResolver` consider mapped argument type

| Q | A |
| --- | --- |
| Branch? | 7.2 |
| Bug fix?| no |
| New feature?| yes |
| Deprecations? | no |
| Issues | Fix symfony#54617 |
| License |MIT |

resolves symfony#54617

In case of sending empty request, `RequestPayloadValueResolver` should consider argument type. In case empty request is considered invalid, having attribute as non-nullable without default value will cause to perform denormalization using empty input resulting with proper error message in response.

Commits
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fc7d413 validate empty request MapQueryString/MapRequestPayload skips validation when empty request is sent

Author: fabpot