action: release-as explicit override does not work along with extraFiles updates

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- What you're trying to do

I am using the release-please action with some inputs from my workflow to have an explicit tag and I am passing along the same to the release-as action input
But when I do that along with manifest file it just ignores my input and calculates the next version using the main branch's manifest version, but if I remove the manifest mode entirely i can no longer update the extraFiles constants that I needed to for the actual release PR logic.

- What code you've already tried
- Any error messages you're getting
No errors just doesn't work, creates the wrong version or just doesn't update the extraFiles