Upgrade to Spring Kafka 2.7.0-M1

[snicoll]

See also #24582 (comment)

[abchaubey]

@snicoll Can I work on this ?

[snicoll]

@abchaubey thanks for asking but it is very much likely there's nothing to be done besides changing a version number in our build. We prefer to do dependency upgrades ourselves anyway as they usually need to be processed swiftly once the bits are available.

[abchaubey]

@snicoll thanks for response