Python Unified SDK 7.0.6

What's Changed

• Use jq to build JSON for Readme.com docs
• Bump black from 25.1.0 to 25.9.0
• Bump mypy from 1.17.0 to 1.17.1
• Bump mypy from 1.17.0 to 1.18.2
• Bump pydantic from 2.11.7 to 2.11.9
• Bump pytest from 8.4.1 to 8.4.2
• Bump pytest-cov from 6.2.1 to 7.0.0
• Bump pytest-mock from 3.14.1 to 3.15.1
• Bump requests from 2.32.4 to 2.32.5

Full Changelog: https://github.com/bitpay/python-bitpay-client/compare/7.0.5...7.0.6