CI/CD

feat: serialize to JSON string instead of file #763

Job	Run time
ci-started	3s
reuse-compliance / reuse-compliance-check	9s
check-code-quality / check-code-quality (3.14)	38s
check-code-quality / check-code-quality (3.12)	45s
check-code-quality / check-code-quality (3.13)	44s
tests	-1s
build-python	-1s
github-release	0s
Publish to PyPI	0s
	2m 17s

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