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Fix pass-manager drawing tests for pydot 3.0 (#12775)

* Fix pass-manager drawing tests for pydot 3.0

Two changes in pydot 3 changed the reference output:

1. previously, attributes were sorted before being output.  Pydot 3
   stores them in declaration order.  Here, we sort our attributes to
   maintain the closest behaviour between the two versions.

2. Text fields (like `label`) that contain special characters now have
   their values enclosed in quote marks.  This is a difference between
   the two versions, and we update the reference files to the new
   version since that's what we'll be using in CI.

Qiskit is still compatible with pydot 2 in general usage, it's just our
tests that are a little more tied to the current version.

* Add test-only constraint on pydot

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