Universal Developer Image enhancements

[l0rd]

Is your enhancement related to a problem? Please describe

Issues related to Developers images

• gh action publishes the wrong "universal base image"
• there is not automated check for new versions the tools
• they are not compatible with Red Hat internal image build tool
• they are not multi-arch
• there is no PR check against Che samples
• manual modification of the README.md (tools lists and sizes) is tedious and error prone

Describe the solution you'd like

• Fix developer images gh action image publish #20798
• Build and publish multi-platform developer images #20862
• Pre-create common tooling config directories for installed tools in UDI image #22029
• Rework developers images to make them compatible with Red Hat internal image build tool (aka brew) #20858
• Migrate to UBI9
• Automate developers image updates (c.f. dependabot ecosystem, renovate data sources)
• Add developers images PR check that validate che samples work
• Add developers images PR check that does a security scan (c.f. trivy)
• Automate certs injections in the Java keystore
• Automatically update developers images README
• Support more easily switching default shells in Che workspaces #22009
• Investigate whether we still need to add entries to /etc/passwd in entrypoint.sh #22010

Additional context

• Universal Developer Image devfile/api#616
• Discussion on switching to use universal developer image in devfile samples devfile/api#674

[nickboldt]

Rework developers images to make them compatible with Red Hat internal image build tool (aka brew)

Note: downstream in https://issues.redhat.com/browse/CRW-2463 and https://issues.redhat.com/browse/CRW-2464 we are required to have 3 images:

• udi for tech preview support
• udi for GA support w/ openjdk
• udi for GA support w/ openj9

Or, we need a way to differentiate which devfile tiles in the dashboard are GA-supported / tech-preview. Perhaps a red outline or a ribbon on the tiles? Could also use this mechanism to differentiate Che samples from CRW samples.