Update dependency python-rapidjson to v1.9

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
python-rapidjson	==1.5 -> ==1.9

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Release Notes

python-rapidjson/python-rapidjson

### [`v1.9`](https://togithub.com/python-rapidjson/python-rapidjson/compare/v1.8...v1.9) [Compare Source](https://togithub.com/python-rapidjson/python-rapidjson/compare/v1.8...v1.9) ### [`v1.8`](https://togithub.com/python-rapidjson/python-rapidjson/compare/v1.7...v1.8) [Compare Source](https://togithub.com/python-rapidjson/python-rapidjson/compare/v1.7...v1.8) ### [`v1.7`](https://togithub.com/python-rapidjson/python-rapidjson/compare/v1.6...v1.7) [Compare Source](https://togithub.com/python-rapidjson/python-rapidjson/compare/v1.6...v1.7) ### [`v1.6`](https://togithub.com/python-rapidjson/python-rapidjson/compare/v1.5...v1.6) [Compare Source](https://togithub.com/python-rapidjson/python-rapidjson/compare/v1.5...v1.6)

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