Move all (most?) dependency versions out of Common.prod.props?

[toddbaert]

Since this is a monorepo to support various contributions (providers, hooks, framework-specific integrations) we should try to decentralize dependency management as much as possible (move dependencies into the subfolder belonging to the associated module). This is especially important to make optimal use of both release-please and the component_owners configuration. The OpenFeature SDK dependency as well as any module-specific dependencies should be maintained by each module. Some basic common modules and test modules may be centrally maintained if that's valuable.

See: #136 (review), #136 (comment)

Originally posted by @austindrenski in #136 (comment)

[jenshenneberg]

I had a quick look at this and am happy to give it a go. What I can see needs to be done is:

• Remove this line and add the reference directly to the individual projects
• (Optional) Rework this section to potentially push some test dependencies down to individual projects, and to reference the version directly in the rest, so renovate can do it's work on updating them.