Backport of #48849. Update `.editorconfig` to make the Java settings the
default for all files, and then apply a 2-space indent to all `*.gradle`
files. Then reformat all the files.
This commit fixes the names of the UBI-based Docker build contexts to
lift the ubi component of the name into the archive base name, instead
of the classifier.
This commit fixes the name of the UBI-based Docker image build contexts
to include "7" (to set us up for the future where we are likely to have
a ubi8-based image).
Rory Hunter
Jason Tedor