Update python-ujson to 5.1.0 (compatible with 3.x and 4.x). Loosen version specification in python-fastapi to allow the update.

Fixes security bug CVE-2021-45958 (GHSA-fh56-85cw-5pq6).

5.1.0

Changed

• Strip debugging symbols from Linux binaries

5.0.0

Added

• Use cibuildwheel to build wheels

Removed

• Drop support for soon-EOL Python 3.6

Fixed

• Install Twine to upload to PyPI

4.3.0

Added

• Enable Windows on ARM64 target

4.2.0

Added

• Add a default keyword argument to dumps
• Add support for Python 3.10
• Build 32-bit wheels for Windows
• Build PyPy3 wheels for manylinux
• Build wheels for musl aarch64 (aka ARM) Linux (musllinux_1_1_aarch64)
• Build wheels for musl Linux (musllinux_1_1_x86_64)

Changed

• Use declarative setup metadata
• Wheel building updates
• Rename master to main
• Replace README.rst with Markdown

4.1.0

Added

• Add gcov coverage testing for C code
• Test Python 3.10-dev

Changed

• Remove unused variable
• Remove explicit handling of manylinux platform tag

Fixed

• dconv no longer uses global instances of StringToDoubleConverter and…
• Switch shebang for the manylinux-wheels script
• Fix typos in error message

Update to 0.75.0 (close #2061006)

0.75.0

Features

• ✨ Add support for custom generate_unique_id_function and docs for generating clients. New docs: Advanced - Generate Clients. PR #4650 by @tiangolo.