Modernize packaging

[mshriver]

slingshot the repo into the future.

No functional changes intended here. Local testing showing consistent API results for uploading through pytest-ibutsu.

[Copilot]

Pull Request Overview

This PR modernizes the packaging and code style of the ibutsu_client codebase, focusing on Python code formatting improvements and import reorganization.

• Standardizes string quotes from single to double quotes throughout the codebase
• Reorganizes imports and removes unnecessary blank lines
• Improves code formatting for better readability and consistency

Reviewed Changes

Copilot reviewed 65 out of 133 changed files in this pull request and generated no comments.

File	Description
Multiple model files	Updated string quotes to double quotes, reorganized imports, improved formatting
ibutsu_client/exceptions.py	Modernized string formatting with f-strings, improved class inheritance syntax
ibutsu_client/configuration.py	Updated string quotes, improved formatting, modernized f-string usage
ibutsu_client/apis/init.py	Removed unnecessary blank line

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}