Replace `MarkerShape` with code-generated `enum` type #8232

Job	Run time
rust-paths-filter	6s
cpp-paths-filter	4s
Checks / Python lints (ruff, mypy, …)	5m 50s
Checks / Test Python Docs	29s
Checks / Check if running codegen would produce any changes	2m 30s
Checks / Rerun lints	2m 27s
Checks / Spell Check	9s
Checks / Misc formatting	16s
Build JS / Build	4m 19s
Minimum Wheel Build / Set Config (linux)	1s
Build Web / Build Web (wasm32 + wasm-bindgen)	6m 39s
Update PR Body / Update PR body	2m 5s
C++ tests / matrix_prep	3s
C++ tests / C++ formatting check	3m 25s
Rust Checks / Rust lints (fmt, check, cranky, tests, doc)	18m 53s
Rust Checks / Check Rust web build (wasm32 + wasm-bindgen)	6m 23s
Rust Checks / Lint TOML files	20s
Rust Checks / Cargo Deny	2m 25s
Minimum Wheel Build / Build Wheels (ubuntu-latest-16-cores)	3m 24s
C++ tests / C++ build & test - Linux x64, C++17	3m 5s
C++ tests / C++ build & test - Linux x64, C++20	3m 19s
C++ tests / C++ build & test - Windows x64	6m 5s
C++ tests / C++ build & test - Mac aarch64	5m 54s
Build Examples / Build Examples	2m 42s
Minimum Wheel Test / Set Config (linux)	2s
Run Notebook / Run notebook	2m 19s
Minimum Wheel Test / Test Wheels (ubuntu-latest-16-cores)	12m 7s
Upload Examples / Upload Examples to Google Cloud	18s
Track Sizes / Track Sizes	1m 12s
Upload Web / Upload web build to google cloud (wasm32 + wasm-bindgen)	11s
Save PR Summary / Create HTML summary for PR	47s
	1h 37m 49s

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