[CT-494] Move the deprecation check for dependancies outside the caching logic

[emmyoop]

Move the deprecation check for dependancies outside the caching logic. The deprecations don't actually get cached, just the response so it's not really valid.

Relevant code:

dbt-core/core/dbt/clients/registry.py

Lines 92 to 109 in 080dd41

	# Either redirectnamespace or redirectname in the JSON response indicate a redirect
	# redirectnamespace redirects based on package ownership
	# redirectname redirects based on package name
	# Both can be present at the same time, or neither. Fails gracefully to old name
	if ("redirectnamespace" in response) or ("redirectname" in response):
	if ("redirectnamespace" in response) and response["redirectnamespace"] is not None:
	use_namespace = response["redirectnamespace"]
	else:
	use_namespace = response["namespace"]
	if ("redirectname" in response) and response["redirectname"] is not None:
	use_name = response["redirectname"]
	else:
	use_name = response["name"]
	new_nwo = use_namespace + "/" + use_name
	deprecations.warn("package-redirect", old_name=package_name, new_name=new_nwo)

[emmyoop]

This needs to be done as part of #5034 or the tests won't pass but does not effect use in the CLI.