_validation generated by aspects silently do not execute through a transition unlike those added through regular rules

### Description of the bug:

If you add a _validation stage using a rule then when you transition the _validation is run within the context of the transition. If however you are using an aspect to add the _validation stage the even though bazel aquery shows the four expected validation, only three are run.

### Which category does this issue belong to?

Core

### What's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

`bazel build //...` on this should produce 4 validation errors. Instead we see 3 because we are missing the validation in the transitioned aspect.
[validation_tansitions.zip](https://github.com/user-attachments/files/16266564/validation_tansitions.zip)

### Which operating system are you running Bazel on?

windows/any

### What is the output of `bazel info release`?

release 7.2.1

### If `bazel info release` returns `development version` or `(@non-git)`, tell us how you built Bazel.

_No response_

### What's the output of `git remote get-url origin; git rev-parse HEAD` ?

_No response_

### If this is a regression, please try to identify the Bazel commit where the bug was introduced with bazelisk --bisect.

_No response_

### Have you found anything relevant by searching the web?

https://github.com/bazelbuild/bazel/issues/19636

My original question
https://groups.google.com/g/bazel-discuss/c/TCo0msh1My4/m/V3ET0eXKAwAJ

More questions on transitions:
https://groups.google.com/g/bazel-discuss/c/euTqZeYR8hs/m/k-bcNFBdAQAJ

### Any other information, logs, or outputs that you want to share?

[aquery_of_actions.txt](https://github.com/user-attachments/files/16266817/aquery_of_actions.txt)

Start with the attached validation_tansitions.zip reproduction and run `bazel build //...` to compare the three reported validation errors with the four expected ones. Read the generated validation actions in aquery_of_actions.txt and trace how aspect-added validations are handled during transitions. Done means the reproduction reports all four validation errors, including the transitioned aspect validation.

Written by the indexing model from the issue text.