Allow end-users to manage Crossplane `Usage` resources

[maximiliantech]

Description

Currently, the user does not have access on MRs of type usages.apiextensions.crossplane.io. The user can not create/update/delete the MR. However, GET and LIST seems to work.

Solution

This issue originates from our more cautious permission approach that we have implemented per Component, see

control-plane-operator/pkg/controlplane/components/crossplane_component.go

Lines 51 to 59 in cc6e5b3

	{
	APIGroups: []string{"apiextensions.crossplane.io"},
	Resources: []string{
	"compositeresourcedefinitions",
	"compositions",
	"environmentconfigs",
	},
	Verbs: VerbsAdmin,
	},

The fix for this issue would be to add usages to the list of resources above.

Acceptance Criteria

• ...
• Code has been reviewed by other team members
• Internal technical Documentation created/updated
• New / changed code is documented
• Unit Tests created for new code or existing Unit Tests updated
• Integration Test Suite updated
• Enduser Documentation updated (if applicable)
• Release on main
• Roll out