Tox

feat(fill, execute): track execution & setup testing phase #9797

Job	Run time
Typecheck python sources with mypy	40s
Lint python sources with ruff	17s
Spellcheck sources with codespell	24s
Validate changelog entries	22s
Lint markdown files with markdownlint	5s
Fill tests, deployed, macos-15, 3.12	15m 12s
Run unit tests, ubuntu-latest, 3.12	4m 35s
Build html documentation with mkdocs	3m 38s
Fill benchmark test cases, deployed, macos-15, 3.12	8m 41s
Fill tests, deployed, self-hosted-ghr-chungus-x64, 3.11	6m 30s
Fill benchmark test cases, deployed, ubuntu-latest, 3.11	6m 42s
Run unit tests, macos-15, 3.11	3m 59s
Run unit tests, macos-15, pypy3.11	5m 46s
Fill benchmark test cases, deployed, ubuntu-latest, pypy3.11	8m 55s
	1h 5m 46s

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