Beta Release for Strapi 5 Migration

[derrickmehaffy]

Man there is so many changes here I really don't want to document them all. Reminder to update this before I merge it so I can generate the full changelog.

Changes (roughly, I'm probably missing a lot of stuff):

• Package names migration (plugin-rest-cache and provider-rest-cache-*)
• A whole lot of dependency updates (including cache-manager which broke a ton of stuff, probably stuff we are missing)
• Updated docs to show both v4 and v5 docs (probably some breaking changes here)
• Changed to injecting middlewares rather than using the router
• Warns user if route isn't found
• Fixes setting proper content-type reference names
• Allows for async hitpass functions
• Moves provider registration into bootstrap again (was in register)
• Moves edit view bust button into hamburger menu
• A whole bunch of other stuff that I'm too lazy to dig through

[derrickmehaffy]

Tests are failing but @boazpoolman is gonna take a look at this next week.

[derrickmehaffy]

Published 5.0.0-beta.0 under both the latest and beta tag to allow for people to test