Allow stack updates that don't evaluate as a change

## 1. Allow stack updates that don't evaluate as a change

## 2. Scope of request
Currently a stack's template cannot be updated if applying the update results in no changes. This creates an edge case where template changes gated behind parameters/conditionals with the intent of changing a parameter later to change behavior are not able to be applied.

It is work around-able by making impact-less changes to the template, but that isn't an ideal solution

## 3. Expected behavior

N/A. This is more of a feature request than a bug so the working behavior is the expected behavior i think.

## 4. Suggest specific test cases
N/A

## 5. Helpful Links to speed up research and evaluation
N/A

## 6. Category- *Other*

## 7. Any additional context (optional)
N/A