Closes gh-11744

See gh-11744

This commit adds InvalidEndpointRequestException as a technology
agnostic way to signal that an endpoint request is invalid. When such
exception is thrown, the web layer translates that to a 400.

Rather than overriding the reason, this commit makes sure to reuse the
error infrastructure.

Closes gh-10618

Closes gh-11714

Closes gh-11503

Closes gh-11746

Closes gh-11520

Closes gh-11572

* pr/11680:
  Replace string arguments with char

Optimize method calls by replacing single character String arguments
with char.

Closes gh-11680

* pr/11720:
  Polish

Closes gh-11720

* pr/11743:
  Narrow scope of some variables

Closes gh-11743

* pr/11724:
  Polish

Closes gh-11724

Rename `spring-boot-configuration-analyzer` to
`spring-boot-deprecated-properties-support`.

Also renamed classes to match and polished some of the code.

See gh-11301

See gh-11727

Closes gh-11741

Closes gh-11740

Closes gh-11739

Closes gh-11738

Closes gh-11737

Closes gh-11736

Closes gh-11735

Closes gh-11734

Closes gh-11733

Closes gh-11732

Closes gh-11731

Closes gh-11730

Closes gh-11729