Bump py-cord to 2.7 #2397

Job	Run time
pymarkdown	11s
uv-check	10s
ruff-lint	8s
flake8	13s
pre-commit / autofix-pre-commit	2m 3s
pytest	26s
mypy (package)	28s
mypy (tests)	19s
release	0s
build-and-publish	0s
	3m 58s

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