Remove dependency on org.springframework.build/aws-maven?

[pmonks]

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deps-deploy indirectly depends on org.springframework.build/[email protected], via s3-wagon-private/[email protected], but this is problematic for a couple of reasons:

1. The org.springframework.build/aws-maven project was deprecated in 2019
2. It has a vulnerability via its dependencies - CVE-2017-5929, and the last released version (5.0.0-RELEASE) has more
3. This library includes a logback.xml file in the deployed JAR (a nasty anti-pattern), which interferes with downstream consumers who wish to provide their own LogBack configuration

I don't know enough about s3-wagon-private/s3-wagon-private to be able to suggest alternatives, but perhaps it has a newer version that uses a less problematic dependency?