Closes gh-10231

This commit removes the restriction that was added in 4a61e456 to
prevent / from being used as the management context path when the
management context was not using a different port

The management context path can now be set to / irrespective of the
configuration of the management port. To avoid a possible clash
with the application's welcome page or similar, the links "endpoint"
that is mapping to the management context path is disabled when
the management context path is /.

As part of allowing / to be used as the management context path again,
the handling of endpoint mappings and the creation of paths for
individual operations has been consolidated into a new EndpointMapping
class that is used across the three (MVC, WebFlux, and Jersey)
implementations.

See gh-9898

* pr/10229:
  Fix broken links

Closes gh-10229

* pr/10228:
  Remove EndpointServletWebAutoConfigurationTests

Closes gh-10228

* pr/10225:
  Upgrade to HikariCP 2.7.1

Closes gh-10225

Previously, when DevTools encountered a jar with a Class-Path manifest
attribute that referenced non-existent files, it would log one
message per entry in the attribute that did not exist. While useful
information, this has proven to be too verbose.

This commit aims to strike a better balances by logging a single
message for an entire jar. The message is a single line that
includes the path to the jar with the faulty Class-Path manifest
attribute and the paths of all of the files that do not exist that are
referenced by the attribute.

Closes gh-10111

Closes gh-10224

Closes gh-10223

Closes gh-10222

Closes gh-10221

Closes gh-10220

Closes gh-10219

Closes gh-10218

Closes gh-10217

Closes gh-10216

Closes gh-10215

Closes gh-10214

Closes gh-10213

Closes gh-10212

Closes gh-10211

Closes gh-10210

Closes gh-10209

Closes gh-10208

Closes gh-10207

Closes gh-10206

Closes gh-10205

Closes gh-10204

Closes gh-10203

Closes gh-10202

Closes gh-10201

* pr/10198:
  Add ErroREST Spring Boot starter entry

Closes gh-10198

Closes gh-10197

Closes gh-10196

Closes gh-10195