Closes gh-22531

Closes gh-22959

See gh-22946

Closes gh-23135

* pr/22946:
  Polish 'Remove ResourceUtils.getURL logging config check'
  Remove ResourceUtils.getURL logging config check

Closes gh-22946

Extend `initializeSystem` to search the exception stack for a
FileNotFoundException before reporting the error. This allows
us to provide a similar stack trace to the one that used to be
thrown when we had the `ResourceUtils.getURL` check.

See gh-22946

Remove `ResourceUtils.getURL` checking from `LoggingApplicationListener`
so that logging systems can implement custom location support.

Prior to this commit, we checked in the listener if the specified config
location could be opened as a URL. This unfortunately prevents Log4J
extensions such as `log4j-spring-cloud-config-client` from implementing
configurable SSL and credentials support.

See gh-22946

This commit ensures that encoded digest hashes for Docker image
layers are zero-padded to the required 64 characters length.

Fixes gh-23132

In some cases, a call to the Docker image load API will fail but
return a 200 OK response status code and an empty response. This
commit detects that the response from this call is empty and
treats this condition as an error instead of a silent failure.

Fixes gh-23130

Closes gh-23113

Closes gh-23129

Closes gh-23113

* gh-23127:
  Use DynamicPropertySource in MongoDB tests

Closes gh-23127

See gh-23127

Closes gh-23123

Closes gh-23124

Closes gh-23090

Closes gh-23122

Closes gh-23100

Closes gh-23103

Closes gh-23102

Closes gh-23094

Closes gh-23093

Closes gh-23087

* pr/23086:
  Remove unused methods

Closes gh-23086

See gh-23086

* gh-23084:
  Polish "Handle null RSocketServer address when setting port property"
  Handle null RSocketServer address when setting port property

Closes gh-23084

See gh-23084

See gh-23084

See gh-22909

Closes gh-23077

Closes gh-23076