Closes gh-17257

Closes gh-17255

Closes gh-17246

Closes gh-17244

Closes gh-17245

Closes gh-17235

Update Gradle archive tasks to ensure that `META-INF/` and
`META-INF/MANIFEST.MF` remain as the first entries of the archive.

Prior to this commit, rewritten archives would violate the implicit
specification of `JarInputStream` that these entries should be first.

Fixes gh-16698

* pr/16535:
  Polish "Fix connection timeout configuration for Netty"
  Fix connection timeout configuration for Netty
  Chain predicates in PropertyMapper when methods

Closes gh-16535

See gh-16535

Update `NettyWebServerFactoryCustomizer` to deal with the fact that
Netty treats `0` and negative connection timeout values differently to
Tomcat, Undertow and Jetty.

See gh-16535

Update `PropertyMapper` to correctly combine predicates when repeated
calls are made to `when` and `whenNot`. Prior to this commit, subsequent
invocations would replace the previous predicate.

Fixes gh-17225

Closes gh-17222

Fixes gh-17062

See gh-17221

* gh-16485:
  Polish "Honour base path from @WebAppConfiguration in @WebMvcTest"
  Honour base path from @WebAppConfiguration in @WebMvcTest

Closes gh-16485

See gh-16485

See gh-16485

* gh-16814:
  Polish "Consider properties from @AutoConfigureTestDatabase"
  Consider properties from @AutoConfigureTestDatabase

Closes gh-16814

See gh-16814

Both Flyway and Liquibase makes use of DataSourceProperties to get
default properties. Previously, both used strictly the configuration
properties and failed to consider embedded datasource properties
autoconfigured by @AutoConfigureTestDatabase. In case a database layer
test e.g. @JdbcTest relies on the autoconfigured embedded datasource,
Flyway and Liquibase autoconfiguration fails as they are not aware of
the embedded datasource properties.

See gh-16814

* gh-17066:
  Polish "Auto-configure caching in jOOQ sliced tests"
  Auto-configure caching in jOOQ sliced tests

Closes gh-17066

See gh-17066

See gh-17066

This reverts commit 5fc67c54.

Closes gh-16991

Closes gh-17208

Update the "sync to maven central" CI job so that it can be rerun if
necessary. We now first check if artifacts are already published before
triggering the sync from Bintray.

Closes gh-16866

Closes gh-17209

Closes gh-17206

Closes gh-17205

Closes gh-17204