Replace `DockerImageNames` with a enum and relocate it from the
`testcontainers` to `container` package. The enum now also
becomes a common location that we can use to apply container
configuration such as timeouts.
Closes gh-41164
Co-authored-by: Phillip Webb <phil.webb@broadcom.com>
* Simplify produce/consume verify via OutputCapture
* Remove spring-boot-smoke-test-pulsar-reactive as
no other smoke tests split them out
See gh-37196
