[ironic][stable] Include ironic-core in ironic-stable-maint ?

Greetings awesome humans, I have a conundrum, and largely it is over stable branch maintenance. In essence, our stable branch approvers are largely down to Dmitry, Riccardo, and Myself. I think this needs to change and I'd like to propose that we go ahead and change ironic-stable-maint to just include ironic-core in order to prevent the bottleneck and conflict and risk which this presents. I strongly believe that our existing cores would all do the right thing if presented with the question of if a change needed to be merged. So honestly I'm not concerned by this proposal. Plus, some of our sub-projects have operated this way for quite some time. Thoughts, concerns, worries? -Julia