Closes gh-23848

Closes gh-23847

Closes gh-23846

Closes gh-23845

Closes gh-23844

Closes gh-23843

Closes gh-23842

Closes gh-23841

Closes gh-23840

Closes gh-23839

Closes gh-23838

Closes gh-23837

Closes gh-23836

Closes gh-23835

Closes gh-23834

Closes gh-23833

Closes gh-23832

Prior to this commit, the how-to documentation would say that Spring
Boot does not support the h2c protocol. While it's not supported
out-of-the-box with a configuration property, this protocol can still be
configured using server customizers.

This commit documents, with code snippets, the server customizers one
should use to configure the h2c protocol in an application - for each
supported server.

Closes gh-21997

Prior to this commit, tests using the `@WebMvcTest` annotation would not
include the `HttpEncodingAutoConfiguration`. This means that, even if
configured, the encoding filter would not be configured in MVC tests,
resulting in an inconsistency with `@SpringBootTest` tests.

This commit ensures that the `HttpEncodingAutoConfiguration` is included
when `@WebMvcTest` is used.

Fixes gh-23749

See gh-23786

See gh-23783

See gh-23776

See gh-23782

See gh-23775

See gh-23792

See gh-23773

See gh-23769

See gh-23772

* pr/23755:
  Polish contribution
  Note that using LiveReload requires Devtools restart to be enabled

Closes gh-23755

See gh-23755

See gh-23755

Fixes gh-23716

Previously, the shutdown hook was only registered once refresh has
completed. If the JVM was shut down during refresh (or after refresh
and before the hook was registered) the hook wouldn't run and the
partially refreshed context would not be cleaned up.

This commit moves the registration of the shutdown hook to before
refresh processing begins. This ensures that the hook is available
to clean up the context if the JVM is shutdown while refresh is in
progress.

Fixes gh-23625

Closes gh-23700

Fixes gh-23699

Closes gh-23696

This commits adds a dedicated configuration to be used when invoking
the github changelog generator. This custom configuration makes sure
to sort dependency upgrades based on the issue title.

Closes gh-23484