docs: Added example on transient compressible flow

[MohammedAnsys]

This PR provides a example of simulating transient compressible flow

The example tries to follow the provided guidelines with #4378 and uses the new API implementation.

[Copilot]

Pull Request Overview

This PR adds a comprehensive example demonstrating transient compressible flow simulation in PyFluent. The example simulates airflow through a nozzle with time-varying boundary conditions, showcasing steady-to-transient coupling, dynamic boundary conditions, and adaptive meshing for high-speed flows.

Key changes:

• Adds a new transient compressible nozzle workflow example with complete meshing and solver setup
• Integrates the example into documentation build configuration and CI/CD workflow
• Includes changelog entry documenting the new feature

Reviewed Changes

Copilot reviewed 4 out of 9 changed files in this pull request and generated 3 comments.

File	Description
examples/00-fluent/transient_compressible_nozzle_workflow.py	Complete workflow example demonstrating transient compressible flow simulation with meshing, solver configuration, and post-processing
doc/source/conf.py	Updates filename pattern to include the new example in documentation generation
.github/workflows/execute-examples-weekly.yml	Adds execution step for the new example in CI/CD pipeline
doc/changelog.d/4504.documentation.md	Changelog entry documenting the addition of the transient compressible flow example

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[mkundu1]

Please fix the couple of typos pointed out by copilot before merging

[prmukherj]

👍