Add auto report of deleted messages #2385

Job	Run time
pymarkdown	9s
flake8	8s
uv-check	6s
ruff-lint	12s
pre-commit / autofix-pre-commit	2m 3s
pytest	28s
mypy (package)	32s
mypy (tests)	21s
build-and-publish	48s
release	-1s
	4m 46s

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